diff --git a/sdk/apimanagement/azure-mgmt-apimanagement/README.rst b/sdk/apimanagement/azure-mgmt-apimanagement/README.rst
index ec8eea3c8439..a0115f92fe77 100644
--- a/sdk/apimanagement/azure-mgmt-apimanagement/README.rst
+++ b/sdk/apimanagement/azure-mgmt-apimanagement/README.rst
@@ -6,7 +6,7 @@ This is the Microsoft Azure API Management Client Library.
 Azure Resource Manager (ARM) is the next generation of management APIs that
 replace the old Azure Service Management (ASM).
 
-This package has been tested with Python 2.7, 3.4, 3.5, 3.6 and 3.7.
+This package has been tested with Python 2.7, 3.5, 3.6 and 3.7.
 
 For the older Azure Service Management (ASM) libraries, see
 `azure-servicemanagement-legacy <https://pypi.python.org/pypi/azure-servicemanagement-legacy>`__ library.
diff --git a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/api_management_service_base_properties.py b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/api_management_service_base_properties.py
index 7cf72fd0ab20..08c88437721e 100644
--- a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/api_management_service_base_properties.py
+++ b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/api_management_service_base_properties.py
@@ -67,15 +67,36 @@ class ApiManagementServiceBaseProperties(Model):
      Management service.
     :type additional_locations:
      list[~azure.mgmt.apimanagement.models.AdditionalLocation]
-    :param custom_properties: Custom properties of the API Management service.
-     Setting
+    :param custom_properties: Custom properties of the API Management
+     service.</br>Setting
      `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Ciphers.TripleDes168`
      will disable the cipher TLS_RSA_WITH_3DES_EDE_CBC_SHA for all TLS(1.0, 1.1
-     and 1.2). Setting
+     and 1.2).</br>Setting
      `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Protocols.Tls11`
-     can be used to disable just TLS 1.1 and setting
+     can be used to disable just TLS 1.1.</br>Setting
      `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Protocols.Tls10`
-     can be used to disable TLS 1.0 on an API Management service.
+     can be used to disable TLS 1.0 on an API Management service.</br>Setting
+     `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Backend.Protocols.Tls11`
+     can be used to disable just TLS 1.1 for communications with
+     backends.</br>Setting
+     `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Backend.Protocols.Tls10`
+     can be used to disable TLS 1.0 for communications with
+     backends.</br>Setting
+     `Microsoft.WindowsAzure.ApiManagement.Gateway.Protocols.Server.Http2` can
+     be used to enable HTTP2 protocol on an API Management service.</br>Not
+     specifying any of these properties on PATCH operation will reset omitted
+     properties' values to their defaults. For all the settings except Http2
+     the default value is `True` if the service was created on or before April
+     1st 2018 and `False` otherwise. Http2 setting's default value is
+     `False`.</br></br>You can disable any of next ciphers by using settings
+     `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Ciphers.[cipher_name]`:
+     TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
+     TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
+     TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, TLS_RSA_WITH_AES_128_GCM_SHA256,
+     TLS_RSA_WITH_AES_256_CBC_SHA256, TLS_RSA_WITH_AES_128_CBC_SHA256,
+     TLS_RSA_WITH_AES_256_CBC_SHA, TLS_RSA_WITH_AES_128_CBC_SHA. For example,
+     `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Ciphers.TLS_RSA_WITH_AES_128_CBC_SHA256`:`false`.
+     The default value is `true` for them.
     :type custom_properties: dict[str, str]
     :param certificates: List of Certificates that need to be installed in the
      API Management service. Max supported certificates that can be installed
diff --git a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/api_management_service_base_properties_py3.py b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/api_management_service_base_properties_py3.py
index cadc56f88b6b..027d8160ec79 100644
--- a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/api_management_service_base_properties_py3.py
+++ b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/api_management_service_base_properties_py3.py
@@ -67,15 +67,36 @@ class ApiManagementServiceBaseProperties(Model):
      Management service.
     :type additional_locations:
      list[~azure.mgmt.apimanagement.models.AdditionalLocation]
-    :param custom_properties: Custom properties of the API Management service.
-     Setting
+    :param custom_properties: Custom properties of the API Management
+     service.</br>Setting
      `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Ciphers.TripleDes168`
      will disable the cipher TLS_RSA_WITH_3DES_EDE_CBC_SHA for all TLS(1.0, 1.1
-     and 1.2). Setting
+     and 1.2).</br>Setting
      `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Protocols.Tls11`
-     can be used to disable just TLS 1.1 and setting
+     can be used to disable just TLS 1.1.</br>Setting
      `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Protocols.Tls10`
-     can be used to disable TLS 1.0 on an API Management service.
+     can be used to disable TLS 1.0 on an API Management service.</br>Setting
+     `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Backend.Protocols.Tls11`
+     can be used to disable just TLS 1.1 for communications with
+     backends.</br>Setting
+     `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Backend.Protocols.Tls10`
+     can be used to disable TLS 1.0 for communications with
+     backends.</br>Setting
+     `Microsoft.WindowsAzure.ApiManagement.Gateway.Protocols.Server.Http2` can
+     be used to enable HTTP2 protocol on an API Management service.</br>Not
+     specifying any of these properties on PATCH operation will reset omitted
+     properties' values to their defaults. For all the settings except Http2
+     the default value is `True` if the service was created on or before April
+     1st 2018 and `False` otherwise. Http2 setting's default value is
+     `False`.</br></br>You can disable any of next ciphers by using settings
+     `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Ciphers.[cipher_name]`:
+     TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
+     TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
+     TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, TLS_RSA_WITH_AES_128_GCM_SHA256,
+     TLS_RSA_WITH_AES_256_CBC_SHA256, TLS_RSA_WITH_AES_128_CBC_SHA256,
+     TLS_RSA_WITH_AES_256_CBC_SHA, TLS_RSA_WITH_AES_128_CBC_SHA. For example,
+     `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Ciphers.TLS_RSA_WITH_AES_128_CBC_SHA256`:`false`.
+     The default value is `true` for them.
     :type custom_properties: dict[str, str]
     :param certificates: List of Certificates that need to be installed in the
      API Management service. Max supported certificates that can be installed
diff --git a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/api_management_service_resource.py b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/api_management_service_resource.py
index 23867d44ffdf..e4814a20a6e8 100644
--- a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/api_management_service_resource.py
+++ b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/api_management_service_resource.py
@@ -78,15 +78,36 @@ class ApiManagementServiceResource(ApimResource):
      Management service.
     :type additional_locations:
      list[~azure.mgmt.apimanagement.models.AdditionalLocation]
-    :param custom_properties: Custom properties of the API Management service.
-     Setting
+    :param custom_properties: Custom properties of the API Management
+     service.</br>Setting
      `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Ciphers.TripleDes168`
      will disable the cipher TLS_RSA_WITH_3DES_EDE_CBC_SHA for all TLS(1.0, 1.1
-     and 1.2). Setting
+     and 1.2).</br>Setting
      `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Protocols.Tls11`
-     can be used to disable just TLS 1.1 and setting
+     can be used to disable just TLS 1.1.</br>Setting
      `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Protocols.Tls10`
-     can be used to disable TLS 1.0 on an API Management service.
+     can be used to disable TLS 1.0 on an API Management service.</br>Setting
+     `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Backend.Protocols.Tls11`
+     can be used to disable just TLS 1.1 for communications with
+     backends.</br>Setting
+     `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Backend.Protocols.Tls10`
+     can be used to disable TLS 1.0 for communications with
+     backends.</br>Setting
+     `Microsoft.WindowsAzure.ApiManagement.Gateway.Protocols.Server.Http2` can
+     be used to enable HTTP2 protocol on an API Management service.</br>Not
+     specifying any of these properties on PATCH operation will reset omitted
+     properties' values to their defaults. For all the settings except Http2
+     the default value is `True` if the service was created on or before April
+     1st 2018 and `False` otherwise. Http2 setting's default value is
+     `False`.</br></br>You can disable any of next ciphers by using settings
+     `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Ciphers.[cipher_name]`:
+     TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
+     TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
+     TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, TLS_RSA_WITH_AES_128_GCM_SHA256,
+     TLS_RSA_WITH_AES_256_CBC_SHA256, TLS_RSA_WITH_AES_128_CBC_SHA256,
+     TLS_RSA_WITH_AES_256_CBC_SHA, TLS_RSA_WITH_AES_128_CBC_SHA. For example,
+     `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Ciphers.TLS_RSA_WITH_AES_128_CBC_SHA256`:`false`.
+     The default value is `true` for them.
     :type custom_properties: dict[str, str]
     :param certificates: List of Certificates that need to be installed in the
      API Management service. Max supported certificates that can be installed
diff --git a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/api_management_service_resource_py3.py b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/api_management_service_resource_py3.py
index 8e2213108bd0..e80a9b46fed1 100644
--- a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/api_management_service_resource_py3.py
+++ b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/api_management_service_resource_py3.py
@@ -78,15 +78,36 @@ class ApiManagementServiceResource(ApimResource):
      Management service.
     :type additional_locations:
      list[~azure.mgmt.apimanagement.models.AdditionalLocation]
-    :param custom_properties: Custom properties of the API Management service.
-     Setting
+    :param custom_properties: Custom properties of the API Management
+     service.</br>Setting
      `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Ciphers.TripleDes168`
      will disable the cipher TLS_RSA_WITH_3DES_EDE_CBC_SHA for all TLS(1.0, 1.1
-     and 1.2). Setting
+     and 1.2).</br>Setting
      `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Protocols.Tls11`
-     can be used to disable just TLS 1.1 and setting
+     can be used to disable just TLS 1.1.</br>Setting
      `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Protocols.Tls10`
-     can be used to disable TLS 1.0 on an API Management service.
+     can be used to disable TLS 1.0 on an API Management service.</br>Setting
+     `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Backend.Protocols.Tls11`
+     can be used to disable just TLS 1.1 for communications with
+     backends.</br>Setting
+     `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Backend.Protocols.Tls10`
+     can be used to disable TLS 1.0 for communications with
+     backends.</br>Setting
+     `Microsoft.WindowsAzure.ApiManagement.Gateway.Protocols.Server.Http2` can
+     be used to enable HTTP2 protocol on an API Management service.</br>Not
+     specifying any of these properties on PATCH operation will reset omitted
+     properties' values to their defaults. For all the settings except Http2
+     the default value is `True` if the service was created on or before April
+     1st 2018 and `False` otherwise. Http2 setting's default value is
+     `False`.</br></br>You can disable any of next ciphers by using settings
+     `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Ciphers.[cipher_name]`:
+     TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
+     TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
+     TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, TLS_RSA_WITH_AES_128_GCM_SHA256,
+     TLS_RSA_WITH_AES_256_CBC_SHA256, TLS_RSA_WITH_AES_128_CBC_SHA256,
+     TLS_RSA_WITH_AES_256_CBC_SHA, TLS_RSA_WITH_AES_128_CBC_SHA. For example,
+     `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Ciphers.TLS_RSA_WITH_AES_128_CBC_SHA256`:`false`.
+     The default value is `true` for them.
     :type custom_properties: dict[str, str]
     :param certificates: List of Certificates that need to be installed in the
      API Management service. Max supported certificates that can be installed
diff --git a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/api_management_service_update_parameters.py b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/api_management_service_update_parameters.py
index aca59f821f77..b3d91a571f81 100644
--- a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/api_management_service_update_parameters.py
+++ b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/api_management_service_update_parameters.py
@@ -76,15 +76,36 @@ class ApiManagementServiceUpdateParameters(ApimResource):
      Management service.
     :type additional_locations:
      list[~azure.mgmt.apimanagement.models.AdditionalLocation]
-    :param custom_properties: Custom properties of the API Management service.
-     Setting
+    :param custom_properties: Custom properties of the API Management
+     service.</br>Setting
      `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Ciphers.TripleDes168`
      will disable the cipher TLS_RSA_WITH_3DES_EDE_CBC_SHA for all TLS(1.0, 1.1
-     and 1.2). Setting
+     and 1.2).</br>Setting
      `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Protocols.Tls11`
-     can be used to disable just TLS 1.1 and setting
+     can be used to disable just TLS 1.1.</br>Setting
      `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Protocols.Tls10`
-     can be used to disable TLS 1.0 on an API Management service.
+     can be used to disable TLS 1.0 on an API Management service.</br>Setting
+     `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Backend.Protocols.Tls11`
+     can be used to disable just TLS 1.1 for communications with
+     backends.</br>Setting
+     `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Backend.Protocols.Tls10`
+     can be used to disable TLS 1.0 for communications with
+     backends.</br>Setting
+     `Microsoft.WindowsAzure.ApiManagement.Gateway.Protocols.Server.Http2` can
+     be used to enable HTTP2 protocol on an API Management service.</br>Not
+     specifying any of these properties on PATCH operation will reset omitted
+     properties' values to their defaults. For all the settings except Http2
+     the default value is `True` if the service was created on or before April
+     1st 2018 and `False` otherwise. Http2 setting's default value is
+     `False`.</br></br>You can disable any of next ciphers by using settings
+     `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Ciphers.[cipher_name]`:
+     TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
+     TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
+     TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, TLS_RSA_WITH_AES_128_GCM_SHA256,
+     TLS_RSA_WITH_AES_256_CBC_SHA256, TLS_RSA_WITH_AES_128_CBC_SHA256,
+     TLS_RSA_WITH_AES_256_CBC_SHA, TLS_RSA_WITH_AES_128_CBC_SHA. For example,
+     `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Ciphers.TLS_RSA_WITH_AES_128_CBC_SHA256`:`false`.
+     The default value is `true` for them.
     :type custom_properties: dict[str, str]
     :param certificates: List of Certificates that need to be installed in the
      API Management service. Max supported certificates that can be installed
diff --git a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/api_management_service_update_parameters_py3.py b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/api_management_service_update_parameters_py3.py
index 76a51b033344..12c68e2e04fe 100644
--- a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/api_management_service_update_parameters_py3.py
+++ b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/api_management_service_update_parameters_py3.py
@@ -76,15 +76,36 @@ class ApiManagementServiceUpdateParameters(ApimResource):
      Management service.
     :type additional_locations:
      list[~azure.mgmt.apimanagement.models.AdditionalLocation]
-    :param custom_properties: Custom properties of the API Management service.
-     Setting
+    :param custom_properties: Custom properties of the API Management
+     service.</br>Setting
      `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Ciphers.TripleDes168`
      will disable the cipher TLS_RSA_WITH_3DES_EDE_CBC_SHA for all TLS(1.0, 1.1
-     and 1.2). Setting
+     and 1.2).</br>Setting
      `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Protocols.Tls11`
-     can be used to disable just TLS 1.1 and setting
+     can be used to disable just TLS 1.1.</br>Setting
      `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Protocols.Tls10`
-     can be used to disable TLS 1.0 on an API Management service.
+     can be used to disable TLS 1.0 on an API Management service.</br>Setting
+     `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Backend.Protocols.Tls11`
+     can be used to disable just TLS 1.1 for communications with
+     backends.</br>Setting
+     `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Backend.Protocols.Tls10`
+     can be used to disable TLS 1.0 for communications with
+     backends.</br>Setting
+     `Microsoft.WindowsAzure.ApiManagement.Gateway.Protocols.Server.Http2` can
+     be used to enable HTTP2 protocol on an API Management service.</br>Not
+     specifying any of these properties on PATCH operation will reset omitted
+     properties' values to their defaults. For all the settings except Http2
+     the default value is `True` if the service was created on or before April
+     1st 2018 and `False` otherwise. Http2 setting's default value is
+     `False`.</br></br>You can disable any of next ciphers by using settings
+     `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Ciphers.[cipher_name]`:
+     TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
+     TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
+     TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, TLS_RSA_WITH_AES_128_GCM_SHA256,
+     TLS_RSA_WITH_AES_256_CBC_SHA256, TLS_RSA_WITH_AES_128_CBC_SHA256,
+     TLS_RSA_WITH_AES_256_CBC_SHA, TLS_RSA_WITH_AES_128_CBC_SHA. For example,
+     `Microsoft.WindowsAzure.ApiManagement.Gateway.Security.Ciphers.TLS_RSA_WITH_AES_128_CBC_SHA256`:`false`.
+     The default value is `true` for them.
     :type custom_properties: dict[str, str]
     :param certificates: List of Certificates that need to be installed in the
      API Management service. Max supported certificates that can be installed
diff --git a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/authentication_settings_contract.py b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/authentication_settings_contract.py
index b4eaf5654446..3c434fa4da8b 100644
--- a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/authentication_settings_contract.py
+++ b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/authentication_settings_contract.py
@@ -21,21 +21,14 @@ class AuthenticationSettingsContract(Model):
     :param openid: OpenID Connect Authentication Settings
     :type openid:
      ~azure.mgmt.apimanagement.models.OpenIdAuthenticationSettingsContract
-    :param subscription_key_required: Specifies whether subscription key is
-     required during call to this API, true - API is included into closed
-     products only, false - API is included into open products alone, null -
-     there is a mix of products.
-    :type subscription_key_required: bool
     """
 
     _attribute_map = {
         'o_auth2': {'key': 'oAuth2', 'type': 'OAuth2AuthenticationSettingsContract'},
         'openid': {'key': 'openid', 'type': 'OpenIdAuthenticationSettingsContract'},
-        'subscription_key_required': {'key': 'subscriptionKeyRequired', 'type': 'bool'},
     }
 
     def __init__(self, **kwargs):
         super(AuthenticationSettingsContract, self).__init__(**kwargs)
         self.o_auth2 = kwargs.get('o_auth2', None)
         self.openid = kwargs.get('openid', None)
-        self.subscription_key_required = kwargs.get('subscription_key_required', None)
diff --git a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/authentication_settings_contract_py3.py b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/authentication_settings_contract_py3.py
index 725dc936e94f..328870d86c82 100644
--- a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/authentication_settings_contract_py3.py
+++ b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/authentication_settings_contract_py3.py
@@ -21,21 +21,14 @@ class AuthenticationSettingsContract(Model):
     :param openid: OpenID Connect Authentication Settings
     :type openid:
      ~azure.mgmt.apimanagement.models.OpenIdAuthenticationSettingsContract
-    :param subscription_key_required: Specifies whether subscription key is
-     required during call to this API, true - API is included into closed
-     products only, false - API is included into open products alone, null -
-     there is a mix of products.
-    :type subscription_key_required: bool
     """
 
     _attribute_map = {
         'o_auth2': {'key': 'oAuth2', 'type': 'OAuth2AuthenticationSettingsContract'},
         'openid': {'key': 'openid', 'type': 'OpenIdAuthenticationSettingsContract'},
-        'subscription_key_required': {'key': 'subscriptionKeyRequired', 'type': 'bool'},
     }
 
-    def __init__(self, *, o_auth2=None, openid=None, subscription_key_required: bool=None, **kwargs) -> None:
+    def __init__(self, *, o_auth2=None, openid=None, **kwargs) -> None:
         super(AuthenticationSettingsContract, self).__init__(**kwargs)
         self.o_auth2 = o_auth2
         self.openid = openid
-        self.subscription_key_required = subscription_key_required
diff --git a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/api_diagnostic_operations.py b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/api_diagnostic_operations.py
index b00a8d13b667..3c1ba95613f7 100644
--- a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/api_diagnostic_operations.py
+++ b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/api_diagnostic_operations.py
@@ -76,7 +76,7 @@ def internal_paging(next_link=None, raw=False):
                 path_format_arguments = {
                     'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
                     'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-                    'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+                    'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1),
                     'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
                 }
                 url = self._client.format_url(url, **path_format_arguments)
@@ -155,7 +155,7 @@ def get_entity_tag(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1),
             'diagnosticId': self._serialize.url("diagnostic_id", diagnostic_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
@@ -220,7 +220,7 @@ def get(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1),
             'diagnosticId': self._serialize.url("diagnostic_id", diagnostic_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
@@ -299,7 +299,7 @@ def create_or_update(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1),
             'diagnosticId': self._serialize.url("diagnostic_id", diagnostic_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
@@ -390,7 +390,7 @@ def update(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1),
             'diagnosticId': self._serialize.url("diagnostic_id", diagnostic_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
@@ -459,7 +459,7 @@ def delete(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1),
             'diagnosticId': self._serialize.url("diagnostic_id", diagnostic_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
diff --git a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/api_issue_attachment_operations.py b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/api_issue_attachment_operations.py
index 859143e02e2f..8195c082fba0 100644
--- a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/api_issue_attachment_operations.py
+++ b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/api_issue_attachment_operations.py
@@ -80,7 +80,7 @@ def internal_paging(next_link=None, raw=False):
                 path_format_arguments = {
                     'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
                     'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-                    'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+                    'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1),
                     'issueId': self._serialize.url("issue_id", issue_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
                     'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
                 }
@@ -163,7 +163,7 @@ def get_entity_tag(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1),
             'issueId': self._serialize.url("issue_id", issue_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'attachmentId': self._serialize.url("attachment_id", attachment_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
@@ -232,7 +232,7 @@ def get(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1),
             'issueId': self._serialize.url("issue_id", issue_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'attachmentId': self._serialize.url("attachment_id", attachment_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
@@ -317,7 +317,7 @@ def create_or_update(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1),
             'issueId': self._serialize.url("issue_id", issue_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'attachmentId': self._serialize.url("attachment_id", attachment_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
@@ -409,7 +409,7 @@ def delete(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1),
             'issueId': self._serialize.url("issue_id", issue_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'attachmentId': self._serialize.url("attachment_id", attachment_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
diff --git a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/api_issue_comment_operations.py b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/api_issue_comment_operations.py
index d6598520f1dc..2a3df00bac68 100644
--- a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/api_issue_comment_operations.py
+++ b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/api_issue_comment_operations.py
@@ -80,7 +80,7 @@ def internal_paging(next_link=None, raw=False):
                 path_format_arguments = {
                     'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
                     'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-                    'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+                    'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1),
                     'issueId': self._serialize.url("issue_id", issue_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
                     'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
                 }
@@ -163,7 +163,7 @@ def get_entity_tag(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1),
             'issueId': self._serialize.url("issue_id", issue_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'commentId': self._serialize.url("comment_id", comment_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
@@ -232,7 +232,7 @@ def get(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1),
             'issueId': self._serialize.url("issue_id", issue_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'commentId': self._serialize.url("comment_id", comment_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
@@ -317,7 +317,7 @@ def create_or_update(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1),
             'issueId': self._serialize.url("issue_id", issue_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'commentId': self._serialize.url("comment_id", comment_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
@@ -409,7 +409,7 @@ def delete(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1),
             'issueId': self._serialize.url("issue_id", issue_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'commentId': self._serialize.url("comment_id", comment_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
diff --git a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/api_issue_operations.py b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/api_issue_operations.py
index c513d93b2c20..d8faec7690bd 100644
--- a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/api_issue_operations.py
+++ b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/api_issue_operations.py
@@ -80,7 +80,7 @@ def internal_paging(next_link=None, raw=False):
                 path_format_arguments = {
                     'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
                     'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-                    'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+                    'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1),
                     'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
                 }
                 url = self._client.format_url(url, **path_format_arguments)
@@ -161,7 +161,7 @@ def get_entity_tag(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1),
             'issueId': self._serialize.url("issue_id", issue_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
@@ -227,7 +227,7 @@ def get(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1),
             'issueId': self._serialize.url("issue_id", issue_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
@@ -308,7 +308,7 @@ def create_or_update(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1),
             'issueId': self._serialize.url("issue_id", issue_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
@@ -398,7 +398,7 @@ def update(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1),
             'issueId': self._serialize.url("issue_id", issue_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
@@ -467,7 +467,7 @@ def delete(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1),
             'issueId': self._serialize.url("issue_id", issue_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
diff --git a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/api_operation_operations.py b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/api_operation_operations.py
index 596f3528bf20..07e96f7885a5 100644
--- a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/api_operation_operations.py
+++ b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/api_operation_operations.py
@@ -168,7 +168,7 @@ def get_entity_tag(
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
             'apiId': self._serialize.url("api_id", api_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
-            'operationId': self._serialize.url("operation_id", operation_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'operationId': self._serialize.url("operation_id", operation_id, 'str', max_length=80, min_length=1),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
         url = self._client.format_url(url, **path_format_arguments)
@@ -233,7 +233,7 @@ def get(
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
             'apiId': self._serialize.url("api_id", api_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
-            'operationId': self._serialize.url("operation_id", operation_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'operationId': self._serialize.url("operation_id", operation_id, 'str', max_length=80, min_length=1),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
         url = self._client.format_url(url, **path_format_arguments)
@@ -313,7 +313,7 @@ def create_or_update(
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
             'apiId': self._serialize.url("api_id", api_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
-            'operationId': self._serialize.url("operation_id", operation_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'operationId': self._serialize.url("operation_id", operation_id, 'str', max_length=80, min_length=1),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
         url = self._client.format_url(url, **path_format_arguments)
@@ -406,7 +406,7 @@ def update(
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
             'apiId': self._serialize.url("api_id", api_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
-            'operationId': self._serialize.url("operation_id", operation_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'operationId': self._serialize.url("operation_id", operation_id, 'str', max_length=80, min_length=1),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
         url = self._client.format_url(url, **path_format_arguments)
@@ -476,7 +476,7 @@ def delete(
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
             'apiId': self._serialize.url("api_id", api_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
-            'operationId': self._serialize.url("operation_id", operation_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'operationId': self._serialize.url("operation_id", operation_id, 'str', max_length=80, min_length=1),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
         url = self._client.format_url(url, **path_format_arguments)
diff --git a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/api_operation_policy_operations.py b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/api_operation_policy_operations.py
index 57f3b7bbecc1..3fed3af944a3 100644
--- a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/api_operation_policy_operations.py
+++ b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/api_operation_policy_operations.py
@@ -70,7 +70,7 @@ def list_by_operation(
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
             'apiId': self._serialize.url("api_id", api_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
-            'operationId': self._serialize.url("operation_id", operation_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'operationId': self._serialize.url("operation_id", operation_id, 'str', max_length=80, min_length=1),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
         url = self._client.format_url(url, **path_format_arguments)
@@ -140,7 +140,7 @@ def get_entity_tag(
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
             'apiId': self._serialize.url("api_id", api_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
-            'operationId': self._serialize.url("operation_id", operation_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'operationId': self._serialize.url("operation_id", operation_id, 'str', max_length=80, min_length=1),
             'policyId': self._serialize.url("self.policy_id", self.policy_id, 'str'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
@@ -210,7 +210,7 @@ def get(
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
             'apiId': self._serialize.url("api_id", api_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
-            'operationId': self._serialize.url("operation_id", operation_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'operationId': self._serialize.url("operation_id", operation_id, 'str', max_length=80, min_length=1),
             'policyId': self._serialize.url("self.policy_id", self.policy_id, 'str'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
@@ -299,7 +299,7 @@ def create_or_update(
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
             'apiId': self._serialize.url("api_id", api_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
-            'operationId': self._serialize.url("operation_id", operation_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'operationId': self._serialize.url("operation_id", operation_id, 'str', max_length=80, min_length=1),
             'policyId': self._serialize.url("self.policy_id", self.policy_id, 'str'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
@@ -389,7 +389,7 @@ def delete(
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
             'apiId': self._serialize.url("api_id", api_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
-            'operationId': self._serialize.url("operation_id", operation_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'operationId': self._serialize.url("operation_id", operation_id, 'str', max_length=80, min_length=1),
             'policyId': self._serialize.url("self.policy_id", self.policy_id, 'str'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
diff --git a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/api_product_operations.py b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/api_product_operations.py
index 27542a5e3b4a..5a7785e852d8 100644
--- a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/api_product_operations.py
+++ b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/api_product_operations.py
@@ -76,7 +76,7 @@ def internal_paging(next_link=None, raw=False):
                 path_format_arguments = {
                     'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
                     'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-                    'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+                    'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1),
                     'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
                 }
                 url = self._client.format_url(url, **path_format_arguments)
diff --git a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/api_release_operations.py b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/api_release_operations.py
index c00e71b80676..d1402e8fefe2 100644
--- a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/api_release_operations.py
+++ b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/api_release_operations.py
@@ -79,7 +79,7 @@ def internal_paging(next_link=None, raw=False):
                 path_format_arguments = {
                     'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
                     'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-                    'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+                    'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1),
                     'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
                 }
                 url = self._client.format_url(url, **path_format_arguments)
@@ -157,7 +157,7 @@ def get_entity_tag(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1),
             'releaseId': self._serialize.url("release_id", release_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
@@ -221,7 +221,7 @@ def get(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1),
             'releaseId': self._serialize.url("release_id", release_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
@@ -304,7 +304,7 @@ def create_or_update(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1),
             'releaseId': self._serialize.url("release_id", release_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
@@ -399,7 +399,7 @@ def update(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1),
             'releaseId': self._serialize.url("release_id", release_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
@@ -468,7 +468,7 @@ def delete(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1),
             'releaseId': self._serialize.url("release_id", release_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
diff --git a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/api_revision_operations.py b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/api_revision_operations.py
index fc654cfe9f18..b1db7c6fce05 100644
--- a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/api_revision_operations.py
+++ b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/api_revision_operations.py
@@ -76,7 +76,7 @@ def internal_paging(next_link=None, raw=False):
                 path_format_arguments = {
                     'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
                     'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-                    'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+                    'apiId': self._serialize.url("api_id", api_id, 'str', max_length=80, min_length=1),
                     'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
                 }
                 url = self._client.format_url(url, **path_format_arguments)
diff --git a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/backend_operations.py b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/backend_operations.py
index 5afb9bbb081a..686e325a3bd7 100644
--- a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/backend_operations.py
+++ b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/backend_operations.py
@@ -151,7 +151,7 @@ def get_entity_tag(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'backendId': self._serialize.url("backend_id", backend_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'backendId': self._serialize.url("backend_id", backend_id, 'str', max_length=80, min_length=1),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
         url = self._client.format_url(url, **path_format_arguments)
@@ -211,7 +211,7 @@ def get(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'backendId': self._serialize.url("backend_id", backend_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'backendId': self._serialize.url("backend_id", backend_id, 'str', max_length=80, min_length=1),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
         url = self._client.format_url(url, **path_format_arguments)
@@ -286,7 +286,7 @@ def create_or_update(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'backendId': self._serialize.url("backend_id", backend_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'backendId': self._serialize.url("backend_id", backend_id, 'str', max_length=80, min_length=1),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
         url = self._client.format_url(url, **path_format_arguments)
@@ -373,7 +373,7 @@ def update(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'backendId': self._serialize.url("backend_id", backend_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'backendId': self._serialize.url("backend_id", backend_id, 'str', max_length=80, min_length=1),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
         url = self._client.format_url(url, **path_format_arguments)
@@ -438,7 +438,7 @@ def delete(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'backendId': self._serialize.url("backend_id", backend_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'backendId': self._serialize.url("backend_id", backend_id, 'str', max_length=80, min_length=1),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
         url = self._client.format_url(url, **path_format_arguments)
@@ -504,7 +504,7 @@ def reconnect(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'backendId': self._serialize.url("backend_id", backend_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'backendId': self._serialize.url("backend_id", backend_id, 'str', max_length=80, min_length=1),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
         url = self._client.format_url(url, **path_format_arguments)
diff --git a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/group_operations.py b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/group_operations.py
index a7cda28143af..77a7a3de6fd2 100644
--- a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/group_operations.py
+++ b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/group_operations.py
@@ -151,7 +151,7 @@ def get_entity_tag(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'groupId': self._serialize.url("group_id", group_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'groupId': self._serialize.url("group_id", group_id, 'str', max_length=256, min_length=1),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
         url = self._client.format_url(url, **path_format_arguments)
@@ -211,7 +211,7 @@ def get(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'groupId': self._serialize.url("group_id", group_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'groupId': self._serialize.url("group_id", group_id, 'str', max_length=256, min_length=1),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
         url = self._client.format_url(url, **path_format_arguments)
@@ -287,7 +287,7 @@ def create_or_update(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'groupId': self._serialize.url("group_id", group_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'groupId': self._serialize.url("group_id", group_id, 'str', max_length=256, min_length=1),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
         url = self._client.format_url(url, **path_format_arguments)
@@ -374,7 +374,7 @@ def update(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'groupId': self._serialize.url("group_id", group_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'groupId': self._serialize.url("group_id", group_id, 'str', max_length=256, min_length=1),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
         url = self._client.format_url(url, **path_format_arguments)
@@ -439,7 +439,7 @@ def delete(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'groupId': self._serialize.url("group_id", group_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'groupId': self._serialize.url("group_id", group_id, 'str', max_length=256, min_length=1),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
         url = self._client.format_url(url, **path_format_arguments)
diff --git a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/group_user_operations.py b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/group_user_operations.py
index 728f33598003..9770bfc859f8 100644
--- a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/group_user_operations.py
+++ b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/group_user_operations.py
@@ -83,7 +83,7 @@ def internal_paging(next_link=None, raw=False):
                 path_format_arguments = {
                     'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
                     'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-                    'groupId': self._serialize.url("group_id", group_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+                    'groupId': self._serialize.url("group_id", group_id, 'str', max_length=256, min_length=1),
                     'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
                 }
                 url = self._client.format_url(url, **path_format_arguments)
@@ -162,8 +162,8 @@ def check_entity_exists(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'groupId': self._serialize.url("group_id", group_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
-            'userId': self._serialize.url("user_id", user_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'groupId': self._serialize.url("group_id", group_id, 'str', max_length=256, min_length=1),
+            'userId': self._serialize.url("user_id", user_id, 'str', max_length=80, min_length=1),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
         url = self._client.format_url(url, **path_format_arguments)
@@ -225,8 +225,8 @@ def create(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'groupId': self._serialize.url("group_id", group_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
-            'userId': self._serialize.url("user_id", user_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'groupId': self._serialize.url("group_id", group_id, 'str', max_length=256, min_length=1),
+            'userId': self._serialize.url("user_id", user_id, 'str', max_length=80, min_length=1),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
         url = self._client.format_url(url, **path_format_arguments)
@@ -295,8 +295,8 @@ def delete(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'groupId': self._serialize.url("group_id", group_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
-            'userId': self._serialize.url("user_id", user_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'groupId': self._serialize.url("group_id", group_id, 'str', max_length=256, min_length=1),
+            'userId': self._serialize.url("user_id", user_id, 'str', max_length=80, min_length=1),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
         url = self._client.format_url(url, **path_format_arguments)
diff --git a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/notification_recipient_user_operations.py b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/notification_recipient_user_operations.py
index 7041ad6440a4..c45b5b44a195 100644
--- a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/notification_recipient_user_operations.py
+++ b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/notification_recipient_user_operations.py
@@ -143,7 +143,7 @@ def check_entity_exists(
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
             'notificationName': self._serialize.url("notification_name", notification_name, 'str'),
-            'userId': self._serialize.url("user_id", user_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'userId': self._serialize.url("user_id", user_id, 'str', max_length=80, min_length=1),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
         url = self._client.format_url(url, **path_format_arguments)
@@ -212,7 +212,7 @@ def create_or_update(
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
             'notificationName': self._serialize.url("notification_name", notification_name, 'str'),
-            'userId': self._serialize.url("user_id", user_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'userId': self._serialize.url("user_id", user_id, 'str', max_length=80, min_length=1),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
         url = self._client.format_url(url, **path_format_arguments)
@@ -287,7 +287,7 @@ def delete(
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
             'notificationName': self._serialize.url("notification_name", notification_name, 'str'),
-            'userId': self._serialize.url("user_id", user_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'userId': self._serialize.url("user_id", user_id, 'str', max_length=80, min_length=1),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
         url = self._client.format_url(url, **path_format_arguments)
diff --git a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/product_api_operations.py b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/product_api_operations.py
index 5263136fbbaf..34d144c3219e 100644
--- a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/product_api_operations.py
+++ b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/product_api_operations.py
@@ -82,7 +82,7 @@ def internal_paging(next_link=None, raw=False):
                 path_format_arguments = {
                     'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
                     'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-                    'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+                    'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1),
                     'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
                 }
                 url = self._client.format_url(url, **path_format_arguments)
@@ -162,7 +162,7 @@ def check_entity_exists(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1),
             'apiId': self._serialize.url("api_id", api_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
@@ -224,7 +224,7 @@ def create_or_update(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1),
             'apiId': self._serialize.url("api_id", api_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
@@ -295,7 +295,7 @@ def delete(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1),
             'apiId': self._serialize.url("api_id", api_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
diff --git a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/product_group_operations.py b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/product_group_operations.py
index cefd7ce25cdb..5df840007221 100644
--- a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/product_group_operations.py
+++ b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/product_group_operations.py
@@ -78,7 +78,7 @@ def internal_paging(next_link=None, raw=False):
                 path_format_arguments = {
                     'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
                     'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-                    'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+                    'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1),
                     'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
                 }
                 url = self._client.format_url(url, **path_format_arguments)
@@ -157,8 +157,8 @@ def check_entity_exists(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
-            'groupId': self._serialize.url("group_id", group_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1),
+            'groupId': self._serialize.url("group_id", group_id, 'str', max_length=256, min_length=1),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
         url = self._client.format_url(url, **path_format_arguments)
@@ -219,8 +219,8 @@ def create_or_update(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
-            'groupId': self._serialize.url("group_id", group_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1),
+            'groupId': self._serialize.url("group_id", group_id, 'str', max_length=256, min_length=1),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
         url = self._client.format_url(url, **path_format_arguments)
@@ -289,8 +289,8 @@ def delete(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
-            'groupId': self._serialize.url("group_id", group_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1),
+            'groupId': self._serialize.url("group_id", group_id, 'str', max_length=256, min_length=1),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
         url = self._client.format_url(url, **path_format_arguments)
diff --git a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/product_operations.py b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/product_operations.py
index ab5a195f764f..8833834dc152 100644
--- a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/product_operations.py
+++ b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/product_operations.py
@@ -162,7 +162,7 @@ def get_entity_tag(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
         url = self._client.format_url(url, **path_format_arguments)
@@ -222,7 +222,7 @@ def get(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
         url = self._client.format_url(url, **path_format_arguments)
@@ -297,7 +297,7 @@ def create_or_update(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
         url = self._client.format_url(url, **path_format_arguments)
@@ -384,7 +384,7 @@ def update(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
         url = self._client.format_url(url, **path_format_arguments)
@@ -452,7 +452,7 @@ def delete(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
         url = self._client.format_url(url, **path_format_arguments)
diff --git a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/product_policy_operations.py b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/product_policy_operations.py
index 88efe0a55ee4..e9f049fa7c93 100644
--- a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/product_policy_operations.py
+++ b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/product_policy_operations.py
@@ -65,7 +65,7 @@ def list_by_product(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
         url = self._client.format_url(url, **path_format_arguments)
@@ -129,7 +129,7 @@ def get_entity_tag(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1),
             'policyId': self._serialize.url("self.policy_id", self.policy_id, 'str'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
@@ -194,7 +194,7 @@ def get(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1),
             'policyId': self._serialize.url("self.policy_id", self.policy_id, 'str'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
@@ -278,7 +278,7 @@ def create_or_update(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1),
             'policyId': self._serialize.url("self.policy_id", self.policy_id, 'str'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
@@ -363,7 +363,7 @@ def delete(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1),
             'policyId': self._serialize.url("self.policy_id", self.policy_id, 'str'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
diff --git a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/product_subscriptions_operations.py b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/product_subscriptions_operations.py
index fee36bbc7942..b1085f963f54 100644
--- a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/product_subscriptions_operations.py
+++ b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/product_subscriptions_operations.py
@@ -86,7 +86,7 @@ def internal_paging(next_link=None, raw=False):
                 path_format_arguments = {
                     'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
                     'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-                    'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+                    'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1),
                     'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
                 }
                 url = self._client.format_url(url, **path_format_arguments)
diff --git a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/tag_operations.py b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/tag_operations.py
index 9c314c560929..81533b02019c 100644
--- a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/tag_operations.py
+++ b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/tag_operations.py
@@ -82,7 +82,7 @@ def internal_paging(next_link=None, raw=False):
                     'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
                     'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
                     'apiId': self._serialize.url("api_id", api_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
-                    'operationId': self._serialize.url("operation_id", operation_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+                    'operationId': self._serialize.url("operation_id", operation_id, 'str', max_length=80, min_length=1),
                     'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
                 }
                 url = self._client.format_url(url, **path_format_arguments)
@@ -165,7 +165,7 @@ def get_entity_state_by_operation(
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
             'apiId': self._serialize.url("api_id", api_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
-            'operationId': self._serialize.url("operation_id", operation_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'operationId': self._serialize.url("operation_id", operation_id, 'str', max_length=80, min_length=1),
             'tagId': self._serialize.url("tag_id", tag_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
@@ -234,7 +234,7 @@ def get_by_operation(
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
             'apiId': self._serialize.url("api_id", api_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
-            'operationId': self._serialize.url("operation_id", operation_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'operationId': self._serialize.url("operation_id", operation_id, 'str', max_length=80, min_length=1),
             'tagId': self._serialize.url("tag_id", tag_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
@@ -313,7 +313,7 @@ def assign_to_operation(
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
             'apiId': self._serialize.url("api_id", api_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
-            'operationId': self._serialize.url("operation_id", operation_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'operationId': self._serialize.url("operation_id", operation_id, 'str', max_length=80, min_length=1),
             'tagId': self._serialize.url("tag_id", tag_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
@@ -388,7 +388,7 @@ def detach_from_operation(
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
             'apiId': self._serialize.url("api_id", api_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
-            'operationId': self._serialize.url("operation_id", operation_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'operationId': self._serialize.url("operation_id", operation_id, 'str', max_length=80, min_length=1),
             'tagId': self._serialize.url("tag_id", tag_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
@@ -831,7 +831,7 @@ def internal_paging(next_link=None, raw=False):
                 path_format_arguments = {
                     'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
                     'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-                    'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+                    'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1),
                     'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
                 }
                 url = self._client.format_url(url, **path_format_arguments)
@@ -909,7 +909,7 @@ def get_entity_state_by_product(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1),
             'tagId': self._serialize.url("tag_id", tag_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
@@ -973,7 +973,7 @@ def get_by_product(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1),
             'tagId': self._serialize.url("tag_id", tag_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
@@ -1047,7 +1047,7 @@ def assign_to_product(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1),
             'tagId': self._serialize.url("tag_id", tag_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
@@ -1117,7 +1117,7 @@ def detach_from_product(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'productId': self._serialize.url("product_id", product_id, 'str', max_length=256, min_length=1),
             'tagId': self._serialize.url("tag_id", tag_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
diff --git a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/user_confirmation_password_operations.py b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/user_confirmation_password_operations.py
index faa76b03f4d2..dea83a2902cd 100644
--- a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/user_confirmation_password_operations.py
+++ b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/user_confirmation_password_operations.py
@@ -62,7 +62,7 @@ def send(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'userId': self._serialize.url("user_id", user_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'userId': self._serialize.url("user_id", user_id, 'str', max_length=80, min_length=1),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
         url = self._client.format_url(url, **path_format_arguments)
diff --git a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/user_group_operations.py b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/user_group_operations.py
index d43a29185134..96d7e6a1794b 100644
--- a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/user_group_operations.py
+++ b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/user_group_operations.py
@@ -79,7 +79,7 @@ def internal_paging(next_link=None, raw=False):
                 path_format_arguments = {
                     'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
                     'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-                    'userId': self._serialize.url("user_id", user_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+                    'userId': self._serialize.url("user_id", user_id, 'str', max_length=80, min_length=1),
                     'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
                 }
                 url = self._client.format_url(url, **path_format_arguments)
diff --git a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/user_identities_operations.py b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/user_identities_operations.py
index 6a9ce0a5b8e2..bdb361d3dcd5 100644
--- a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/user_identities_operations.py
+++ b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/user_identities_operations.py
@@ -66,7 +66,7 @@ def internal_paging(next_link=None, raw=False):
                 path_format_arguments = {
                     'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
                     'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-                    'userId': self._serialize.url("user_id", user_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+                    'userId': self._serialize.url("user_id", user_id, 'str', max_length=80, min_length=1),
                     'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
                 }
                 url = self._client.format_url(url, **path_format_arguments)
diff --git a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/user_operations.py b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/user_operations.py
index 79e55902d2e5..25f49bb9d5d9 100644
--- a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/user_operations.py
+++ b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/user_operations.py
@@ -161,7 +161,7 @@ def get_entity_tag(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'userId': self._serialize.url("user_id", user_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'userId': self._serialize.url("user_id", user_id, 'str', max_length=80, min_length=1),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
         url = self._client.format_url(url, **path_format_arguments)
@@ -221,7 +221,7 @@ def get(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'userId': self._serialize.url("user_id", user_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'userId': self._serialize.url("user_id", user_id, 'str', max_length=80, min_length=1),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
         url = self._client.format_url(url, **path_format_arguments)
@@ -297,7 +297,7 @@ def create_or_update(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'userId': self._serialize.url("user_id", user_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'userId': self._serialize.url("user_id", user_id, 'str', max_length=80, min_length=1),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
         url = self._client.format_url(url, **path_format_arguments)
@@ -384,7 +384,7 @@ def update(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'userId': self._serialize.url("user_id", user_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'userId': self._serialize.url("user_id", user_id, 'str', max_length=80, min_length=1),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
         url = self._client.format_url(url, **path_format_arguments)
@@ -454,7 +454,7 @@ def delete(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'userId': self._serialize.url("user_id", user_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'userId': self._serialize.url("user_id", user_id, 'str', max_length=80, min_length=1),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
         url = self._client.format_url(url, **path_format_arguments)
@@ -517,7 +517,7 @@ def generate_sso_url(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'userId': self._serialize.url("user_id", user_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'userId': self._serialize.url("user_id", user_id, 'str', max_length=80, min_length=1),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
         url = self._client.format_url(url, **path_format_arguments)
@@ -591,7 +591,7 @@ def get_shared_access_token(
         path_format_arguments = {
             'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
             'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-            'userId': self._serialize.url("user_id", user_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+            'userId': self._serialize.url("user_id", user_id, 'str', max_length=80, min_length=1),
             'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
         }
         url = self._client.format_url(url, **path_format_arguments)
diff --git a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/user_subscription_operations.py b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/user_subscription_operations.py
index bf2802f5bab9..4cd0bc7ecaaf 100644
--- a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/user_subscription_operations.py
+++ b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/operations/user_subscription_operations.py
@@ -85,7 +85,7 @@ def internal_paging(next_link=None, raw=False):
                 path_format_arguments = {
                     'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
                     'serviceName': self._serialize.url("service_name", service_name, 'str', max_length=50, min_length=1, pattern=r'^[a-zA-Z](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?$'),
-                    'userId': self._serialize.url("user_id", user_id, 'str', max_length=80, min_length=1, pattern=r'^[^*#&+:<>?]+$'),
+                    'userId': self._serialize.url("user_id", user_id, 'str', max_length=80, min_length=1),
                     'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
                 }
                 url = self._client.format_url(url, **path_format_arguments)
diff --git a/sdk/apimanagement/azure-mgmt-apimanagement/setup.py b/sdk/apimanagement/azure-mgmt-apimanagement/setup.py
index 37fdad48736f..7ddc0c393bc7 100644
--- a/sdk/apimanagement/azure-mgmt-apimanagement/setup.py
+++ b/sdk/apimanagement/azure-mgmt-apimanagement/setup.py
@@ -64,7 +64,6 @@
         'Programming Language :: Python :: 2',
         'Programming Language :: Python :: 2.7',
         'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.4',
         'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7',