diff --git a/sdk/confluent/arm-confluent/src/confluentManagementClientContext.ts b/sdk/confluent/arm-confluent/src/confluentManagementClientContext.ts
index 0625c926f555..b37da363a893 100644
--- a/sdk/confluent/arm-confluent/src/confluentManagementClientContext.ts
+++ b/sdk/confluent/arm-confluent/src/confluentManagementClientContext.ts
@@ -36,14 +36,14 @@ export class ConfluentManagementClientContext extends msRestAzure.AzureServiceCl
     if (!options) {
       options = {};
     }
-    if (!options.userAgent) {
+    if(!options.userAgent) {
       const defaultUserAgent = msRestAzure.getDefaultUserAgentValue();
       options.userAgent = `${packageName}/${packageVersion} ${defaultUserAgent}`;
     }
 
     super(credentials, options);
 
-    this.apiVersion = '2020-03-01';
+    this.apiVersion = '2020-03-01-preview';
     this.acceptLanguage = 'en-US';
     this.longRunningOperationRetryTimeout = 30;
     this.baseUri = options.baseUri || this.baseUri || "https://management.azure.com";
@@ -51,10 +51,10 @@ export class ConfluentManagementClientContext extends msRestAzure.AzureServiceCl
     this.credentials = credentials;
     this.subscriptionId = subscriptionId;
 
-    if (options.acceptLanguage !== null && options.acceptLanguage !== undefined) {
+    if(options.acceptLanguage !== null && options.acceptLanguage !== undefined) {
       this.acceptLanguage = options.acceptLanguage;
     }
-    if (options.longRunningOperationRetryTimeout !== null && options.longRunningOperationRetryTimeout !== undefined) {
+    if(options.longRunningOperationRetryTimeout !== null && options.longRunningOperationRetryTimeout !== undefined) {
       this.longRunningOperationRetryTimeout = options.longRunningOperationRetryTimeout;
     }
   }
diff --git a/sdk/confluent/arm-confluent/src/models/index.ts b/sdk/confluent/arm-confluent/src/models/index.ts
index 5398bfa493fe..ceb476b75887 100644
--- a/sdk/confluent/arm-confluent/src/models/index.ts
+++ b/sdk/confluent/arm-confluent/src/models/index.ts
@@ -12,21 +12,21 @@ import * as msRest from "@azure/ms-rest-js";
 export { BaseResource, CloudError };
 
 /**
- * Confluent Agreements Resource.
+ * Agreement Terms definition
  */
 export interface ConfluentAgreementResource extends BaseResource {
   /**
-   * ARM id of the resource.
+   * The ARM id of the resource.
    * **NOTE: This property will not be serialized. It can only be populated by the server.**
    */
   readonly id?: string;
   /**
-   * Name of the agreement.
+   * The name of the agreement.
    * **NOTE: This property will not be serialized. It can only be populated by the server.**
    */
   readonly name?: string;
   /**
-   * The type of the resource.
+   * The type of the agreement.
    * **NOTE: This property will not be serialized. It can only be populated by the server.**
    */
   readonly type?: string;
@@ -217,8 +217,9 @@ export interface OrganizationResourceProperties {
   /**
    * Provision states for confluent RP. Possible values include: 'Accepted', 'Creating',
    * 'Updating', 'Deleting', 'Succeeded', 'Failed', 'Canceled', 'Deleted', 'NotSpecified'
+   * **NOTE: This property will not be serialized. It can only be populated by the server.**
    */
-  provisioningState?: ProvisionState;
+  readonly provisioningState?: ProvisionState;
   /**
    * Id of the Confluent organization.
    * **NOTE: This property will not be serialized. It can only be populated by the server.**
@@ -266,8 +267,9 @@ export interface OrganizationResource extends BaseResource {
   /**
    * Provision states for confluent RP. Possible values include: 'Accepted', 'Creating',
    * 'Updating', 'Deleting', 'Succeeded', 'Failed', 'Canceled', 'Deleted', 'NotSpecified'
+   * **NOTE: This property will not be serialized. It can only be populated by the server.**
    */
-  provisioningState?: ProvisionState;
+  readonly provisioningState?: ProvisionState;
   /**
    * Id of the Confluent organization.
    * **NOTE: This property will not be serialized. It can only be populated by the server.**
@@ -311,7 +313,7 @@ export interface OrganizationResourceUpdate {
  */
 export interface MarketplaceAgreementsCreateOptionalParams extends msRest.RequestOptionsBase {
   /**
-   * Confluent Agreement resource
+   * Confluent Marketplace Agreement resource
    */
   body?: ConfluentAgreementResource;
 }
diff --git a/sdk/confluent/arm-confluent/src/models/mappers.ts b/sdk/confluent/arm-confluent/src/models/mappers.ts
index 0f3eb00a6f6a..a0887dc70454 100644
--- a/sdk/confluent/arm-confluent/src/models/mappers.ts
+++ b/sdk/confluent/arm-confluent/src/models/mappers.ts
@@ -304,7 +304,7 @@ export const UserDetail: msRest.CompositeMapper = {
       emailAddress: {
         serializedName: "emailAddress",
         constraints: {
-          Pattern: /\S+@\S+\.\S+/
+          Pattern: /^\S+@\S+\.\S+$/
         },
         type: {
           name: "String"
@@ -350,6 +350,7 @@ export const OrganizationResourceProperties: msRest.CompositeMapper = {
         }
       },
       provisioningState: {
+        readOnly: true,
         serializedName: "provisioningState",
         type: {
           name: "String"
@@ -422,6 +423,7 @@ export const OrganizationResource: msRest.CompositeMapper = {
         }
       },
       provisioningState: {
+        readOnly: true,
         serializedName: "properties.provisioningState",
         type: {
           name: "String"
diff --git a/sdk/confluent/arm-confluent/src/models/parameters.ts b/sdk/confluent/arm-confluent/src/models/parameters.ts
index 8c0faae19022..0652f9084aff 100644
--- a/sdk/confluent/arm-confluent/src/models/parameters.ts
+++ b/sdk/confluent/arm-confluent/src/models/parameters.ts
@@ -25,7 +25,7 @@ export const apiVersion: msRest.OperationQueryParameter = {
     required: true,
     isConstant: true,
     serializedName: "api-version",
-    defaultValue: '2020-03-01',
+    defaultValue: '2020-03-01-preview',
     type: {
       name: "String"
     }
diff --git a/sdk/confluent/arm-confluent/src/operations/marketplaceAgreements.ts b/sdk/confluent/arm-confluent/src/operations/marketplaceAgreements.ts
index 3731942dac97..03526180e3e2 100644
--- a/sdk/confluent/arm-confluent/src/operations/marketplaceAgreements.ts
+++ b/sdk/confluent/arm-confluent/src/operations/marketplaceAgreements.ts
@@ -50,7 +50,7 @@ export class MarketplaceAgreements {
   }
 
   /**
-   * @summary Accept marketplace terms.
+   * @summary Create Confluent Marketplace agreement in the subscription.
    * @param [options] The optional parameters
    * @returns Promise<Models.MarketplaceAgreementsCreateResponse>
    */
@@ -110,6 +110,9 @@ const listOperationSpec: msRest.OperationSpec = {
   urlParameters: [
     Parameters.subscriptionId
   ],
+  queryParameters: [
+    Parameters.apiVersion
+  ],
   headerParameters: [
     Parameters.acceptLanguage
   ],
@@ -130,6 +133,9 @@ const createOperationSpec: msRest.OperationSpec = {
   urlParameters: [
     Parameters.subscriptionId
   ],
+  queryParameters: [
+    Parameters.apiVersion
+  ],
   headerParameters: [
     Parameters.acceptLanguage
   ],
@@ -158,6 +164,9 @@ const listNextOperationSpec: msRest.OperationSpec = {
   urlParameters: [
     Parameters.nextPageLink
   ],
+  queryParameters: [
+    Parameters.apiVersion
+  ],
   headerParameters: [
     Parameters.acceptLanguage
   ],