diff --git a/specification/cosmos-db/resource-manager/Microsoft.DocumentDB/stable/2020-03-01/cosmos-db.json b/specification/cosmos-db/resource-manager/Microsoft.DocumentDB/stable/2020-03-01/cosmos-db.json
index f1afe4948bed..88a511e9cecb 100644
--- a/specification/cosmos-db/resource-manager/Microsoft.DocumentDB/stable/2020-03-01/cosmos-db.json
+++ b/specification/cosmos-db/resource-manager/Microsoft.DocumentDB/stable/2020-03-01/cosmos-db.json
@@ -1685,7 +1685,7 @@
     },
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}/sqlDatabases/{databaseName}/throughputSettings/default/migrateToAutoscale": {
       "post": {
-        "operationId": "SqlResources_MigrateSqlDatabaseToAutoscale",
+        "operationId": "SqlResources_MigrateToAutoscaleSqlDatabase",
         "x-ms-examples": {
           "CosmosDBSqlDatabaseMigrateToAutoscale": {
             "$ref": "./examples/CosmosDBSqlDatabaseMigrateToAutoscale.json"
@@ -1719,13 +1719,19 @@
             "schema": {
               "$ref": "#/definitions/ThroughputSettingsGetResults"
             }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
           }
         }
       }
     },
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}/sqlDatabases/{databaseName}/throughputSettings/default/migrateToManualThroughput": {
       "post": {
-        "operationId": "SqlResources_MigrateSqlDatabaseToManualThroughput",
+        "operationId": "SqlResources_MigrateToManualThroughputSqlDatabase",
         "x-ms-examples": {
           "CosmosDBSqlDatabaseMigrateToManualThroughput": {
             "$ref": "./examples/CosmosDBSqlDatabaseMigrateToManualThroughput.json"
@@ -1759,6 +1765,12 @@
             "schema": {
               "$ref": "#/definitions/ThroughputSettingsGetResults"
             }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
           }
         }
       }
@@ -2020,7 +2032,7 @@
     },
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}/sqlDatabases/{databaseName}/containers/{containerName}/throughputSettings/default/migrateToAutoscale": {
       "post": {
-        "operationId": "SqlResources_MigrateSqlContainerToAutoscale",
+        "operationId": "SqlResources_MigrateToAutoscaleSqlContainer",
         "x-ms-examples": {
           "CosmosDBSqlContainerMigrateToAutoscale": {
             "$ref": "./examples/CosmosDBSqlContainerMigrateToAutoscale.json"
@@ -2057,13 +2069,19 @@
             "schema": {
               "$ref": "#/definitions/ThroughputSettingsGetResults"
             }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
           }
         }
       }
     },
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}/sqlDatabases/{databaseName}/containers/{containerName}/throughputSettings/default/migrateToManualThroughput": {
       "post": {
-        "operationId": "SqlResources_MigrateSqlContainerToManualThroughput",
+        "operationId": "SqlResources_MigrateToManualThroughputSqlContainer",
         "x-ms-examples": {
           "CosmosDBSqlContainerMigrateToManualThroughput": {
             "$ref": "./examples/CosmosDBSqlContainerMigrateToManualThroughput.json"
@@ -2100,6 +2118,12 @@
             "schema": {
               "$ref": "#/definitions/ThroughputSettingsGetResults"
             }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
           }
         }
       }
@@ -2877,7 +2901,7 @@
     },
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}/mongodbDatabases/{databaseName}/throughputSettings/default/migrateToAutoscale": {
       "post": {
-        "operationId": "MongoDBResources_MigrateMongoDBDatabaseToAutoscale",
+        "operationId": "MongoDBResources_MigrateToAutoscaleMongoDBDatabase",
         "x-ms-examples": {
           "CosmosDBMongoDBDatabaseMigrateToAutoscale": {
             "$ref": "./examples/CosmosDBMongoDBDatabaseMigrateToAutoscale.json"
@@ -2911,13 +2935,19 @@
             "schema": {
               "$ref": "#/definitions/ThroughputSettingsGetResults"
             }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
           }
         }
       }
     },
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}/mongodbDatabases/{databaseName}/throughputSettings/default/migrateToManualThroughput": {
       "post": {
-        "operationId": "MongoDBResources_MigrateMongoDBDatabaseToManualThroughput",
+        "operationId": "MongoDBResources_MigrateToManualThroughputMongoDBDatabase",
         "x-ms-examples": {
           "CosmosDBMongoDBDatabaseMigrateToManualThroughput": {
             "$ref": "./examples/CosmosDBMongoDBDatabaseMigrateToManualThroughput.json"
@@ -2951,6 +2981,12 @@
             "schema": {
               "$ref": "#/definitions/ThroughputSettingsGetResults"
             }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
           }
         }
       }
@@ -3212,7 +3248,7 @@
     },
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}/mongodbDatabases/{databaseName}/collections/{collectionName}/throughputSettings/default/migrateToAutoscale": {
       "post": {
-        "operationId": "MongoDBResources_MigrateMongoDBCollectionToAutoscale",
+        "operationId": "MongoDBResources_MigrateToAutoscaleMongoDBCollection",
         "x-ms-examples": {
           "CosmosDBMongoDBCollectionMigrateToAutoscale": {
             "$ref": "./examples/CosmosDBMongoDBCollectionMigrateToAutoscale.json"
@@ -3249,13 +3285,19 @@
             "schema": {
               "$ref": "#/definitions/ThroughputSettingsGetResults"
             }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
           }
         }
       }
     },
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}/mongodbDatabases/{databaseName}/collections/{collectionName}/throughputSettings/default/migrateToManualThroughput": {
       "post": {
-        "operationId": "MongoDBResources_MigrateMongoDBCollectionToManualThroughput",
+        "operationId": "MongoDBResources_MigrateToManualThroughputMongoDBCollection",
         "x-ms-examples": {
           "CosmosDBMongoDBCollectionMigrateToManualThroughput": {
             "$ref": "./examples/CosmosDBMongoDBCollectionMigrateToManualThroughput.json"
@@ -3292,6 +3334,12 @@
             "schema": {
               "$ref": "#/definitions/ThroughputSettingsGetResults"
             }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
           }
         }
       }
@@ -3535,7 +3583,7 @@
     },
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}/tables/{tableName}/throughputSettings/default/migrateToAutoscale": {
       "post": {
-        "operationId": "TableResources_MigrateTableToAutoscale",
+        "operationId": "TableResources_MigrateToAutoscaleTable",
         "x-ms-examples": {
           "CosmosDBTableMigrateToAutoscale": {
             "$ref": "./examples/CosmosDBTableMigrateToAutoscale.json"
@@ -3569,13 +3617,19 @@
             "schema": {
               "$ref": "#/definitions/ThroughputSettingsGetResults"
             }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
           }
         }
       }
     },
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}/tables/{tableName}/throughputSettings/default/migrateToManualThroughput": {
       "post": {
-        "operationId": "TableResources_MigrateTableToManualThroughput",
+        "operationId": "TableResources_MigrateToManualThroughputTable",
         "x-ms-examples": {
           "CosmosDBTableMigrateToManualThroughput": {
             "$ref": "./examples/CosmosDBTableMigrateToManualThroughput.json"
@@ -3609,6 +3663,12 @@
             "schema": {
               "$ref": "#/definitions/ThroughputSettingsGetResults"
             }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
           }
         }
       }
@@ -3852,7 +3912,7 @@
     },
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}/cassandraKeyspaces/{keyspaceName}/throughputSettings/default/migrateToAutoscale": {
       "post": {
-        "operationId": "CassandraResources_MigrateCassandraKeyspaceToAutoscale",
+        "operationId": "CassandraResources_MigrateToAutoscaleCassandraKeyspace",
         "x-ms-examples": {
           "CosmosDBCassandraKeyspaceMigrateToAutoscale": {
             "$ref": "./examples/CosmosDBCassandraKeyspaceMigrateToAutoscale.json"
@@ -3886,13 +3946,19 @@
             "schema": {
               "$ref": "#/definitions/ThroughputSettingsGetResults"
             }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
           }
         }
       }
     },
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}/cassandraKeyspaces/{keyspaceName}/throughputSettings/default/migrateToManualThroughput": {
       "post": {
-        "operationId": "CassandraResources_MigrateCassandraKeyspaceToManualThroughput",
+        "operationId": "CassandraResources_MigrateToManualThroughputCassandraKeyspace",
         "x-ms-examples": {
           "CosmosDBCassandraKeyspaceMigrateToManualThroughput": {
             "$ref": "./examples/CosmosDBCassandraKeyspaceMigrateToManualThroughput.json"
@@ -3926,6 +3992,12 @@
             "schema": {
               "$ref": "#/definitions/ThroughputSettingsGetResults"
             }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
           }
         }
       }
@@ -4187,7 +4259,7 @@
     },
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}/cassandraKeyspaces/{keyspaceName}/tables/{tableName}/throughputSettings/default/migrateToAutoscale": {
       "post": {
-        "operationId": "CassandraResources_MigrateCassandraTableToAutoscale",
+        "operationId": "CassandraResources_MigrateToAutoscaleCassandraTable",
         "x-ms-examples": {
           "CosmosDBCassandraTableMigrateToAutoscale": {
             "$ref": "./examples/CosmosDBCassandraTableMigrateToAutoscale.json"
@@ -4224,13 +4296,19 @@
             "schema": {
               "$ref": "#/definitions/ThroughputSettingsGetResults"
             }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
           }
         }
       }
     },
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}/cassandraKeyspaces/{keyspaceName}/tables/{tableName}/throughputSettings/default/migrateToManualThroughput": {
       "post": {
-        "operationId": "CassandraResources_MigrateCassandraTableToManualThroughput",
+        "operationId": "CassandraResources_MigrateToManualThroughputCassandraTable",
         "x-ms-examples": {
           "CosmosDBCassandraTableMigrateToManualThroughput": {
             "$ref": "./examples/CosmosDBCassandraTableMigrateToManualThroughput.json"
@@ -4267,6 +4345,12 @@
             "schema": {
               "$ref": "#/definitions/ThroughputSettingsGetResults"
             }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
           }
         }
       }
@@ -4504,13 +4588,19 @@
             "schema": {
               "$ref": "#/definitions/ThroughputSettingsGetResults"
             }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
           }
         }
       }
     },
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}/gremlinDatabases/{databaseName}/throughputSettings/default/migrateToAutoscale": {
       "post": {
-        "operationId": "GremlinResources_MigrateGremlinDatabaseToAutoscale",
+        "operationId": "GremlinResources_MigrateToAutoscaleGremlinDatabase",
         "x-ms-examples": {
           "CosmosDBGremlinDatabaseMigrateToAutoscale": {
             "$ref": "./examples/CosmosDBGremlinDatabaseMigrateToAutoscale.json"
@@ -4544,13 +4634,19 @@
             "schema": {
               "$ref": "#/definitions/ThroughputSettingsGetResults"
             }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
           }
         }
       }
     },
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}/gremlinDatabases/{databaseName}/throughputSettings/default/migrateToManualThroughput": {
       "post": {
-        "operationId": "GremlinResources_MigrateGremlinDatabaseToManualThroughput",
+        "operationId": "GremlinResources_MigrateToManualThroughputGremlinDatabase",
         "x-ms-examples": {
           "CosmosDBGremlinDatabaseMigrateToManualThroughput": {
             "$ref": "./examples/CosmosDBGremlinDatabaseMigrateToManualThroughput.json"
@@ -4845,7 +4941,7 @@
     },
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}/gremlinDatabases/{databaseName}/graphs/{graphName}/throughputSettings/default/migrateToAutoscale": {
       "post": {
-        "operationId": "GremlinResources_MigrateGremlinGraphToAutoscale",
+        "operationId": "GremlinResources_MigrateToAutoscaleGremlinGraph",
         "x-ms-examples": {
           "CosmosDBGremlinGraphMigrateToAutoscale": {
             "$ref": "./examples/CosmosDBGremlinGraphMigrateToAutoscale.json"
@@ -4882,13 +4978,19 @@
             "schema": {
               "$ref": "#/definitions/ThroughputSettingsGetResults"
             }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
           }
         }
       }
     },
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}/gremlinDatabases/{databaseName}/graphs/{graphName}/throughputSettings/default/migrateToManualThroughput": {
       "post": {
-        "operationId": "GremlinResources_MigrateGremlinGraphToManualThroughput",
+        "operationId": "GremlinResources_MigrateToManualThroughputGremlinGraph",
         "x-ms-examples": {
           "CosmosDBGremlinGraphMigrateToManualThroughput": {
             "$ref": "./examples/CosmosDBGremlinGraphMigrateToManualThroughput.json"
@@ -4925,6 +5027,12 @@
             "schema": {
               "$ref": "#/definitions/ThroughputSettingsGetResults"
             }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
           }
         }
       }
diff --git a/specification/cosmos-db/resource-manager/Microsoft.DocumentDB/stable/2020-04-01/cosmos-db.json b/specification/cosmos-db/resource-manager/Microsoft.DocumentDB/stable/2020-04-01/cosmos-db.json
index d1e2fcd1cfd3..57a7fe2d60e4 100644
--- a/specification/cosmos-db/resource-manager/Microsoft.DocumentDB/stable/2020-04-01/cosmos-db.json
+++ b/specification/cosmos-db/resource-manager/Microsoft.DocumentDB/stable/2020-04-01/cosmos-db.json
@@ -1685,7 +1685,7 @@
     },
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}/sqlDatabases/{databaseName}/throughputSettings/default/migrateToAutoscale": {
       "post": {
-        "operationId": "SqlResources_MigrateSqlDatabaseToAutoscale",
+        "operationId": "SqlResources_MigrateToAutoscaleSqlDatabase",
         "x-ms-examples": {
           "CosmosDBSqlDatabaseMigrateToAutoscale": {
             "$ref": "./examples/CosmosDBSqlDatabaseMigrateToAutoscale.json"
@@ -1719,13 +1719,19 @@
             "schema": {
               "$ref": "#/definitions/ThroughputSettingsGetResults"
             }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
           }
         }
       }
     },
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}/sqlDatabases/{databaseName}/throughputSettings/default/migrateToManualThroughput": {
       "post": {
-        "operationId": "SqlResources_MigrateSqlDatabaseToManualThroughput",
+        "operationId": "SqlResources_MigrateToManualThroughputSqlDatabase",
         "x-ms-examples": {
           "CosmosDBSqlDatabaseMigrateToManualThroughput": {
             "$ref": "./examples/CosmosDBSqlDatabaseMigrateToManualThroughput.json"
@@ -1759,6 +1765,12 @@
             "schema": {
               "$ref": "#/definitions/ThroughputSettingsGetResults"
             }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
           }
         }
       }
@@ -2020,7 +2032,7 @@
     },
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}/sqlDatabases/{databaseName}/containers/{containerName}/throughputSettings/default/migrateToAutoscale": {
       "post": {
-        "operationId": "SqlResources_MigrateSqlContainerToAutoscale",
+        "operationId": "SqlResources_MigrateToAutoscaleSqlContainer",
         "x-ms-examples": {
           "CosmosDBSqlContainerMigrateToAutoscale": {
             "$ref": "./examples/CosmosDBSqlContainerMigrateToAutoscale.json"
@@ -2057,13 +2069,19 @@
             "schema": {
               "$ref": "#/definitions/ThroughputSettingsGetResults"
             }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
           }
         }
       }
     },
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}/sqlDatabases/{databaseName}/containers/{containerName}/throughputSettings/default/migrateToManualThroughput": {
       "post": {
-        "operationId": "SqlResources_MigrateSqlContainerToManualThroughput",
+        "operationId": "SqlResources_MigrateToManualThroughputSqlContainer",
         "x-ms-examples": {
           "CosmosDBSqlContainerMigrateToManualThroughput": {
             "$ref": "./examples/CosmosDBSqlContainerMigrateToManualThroughput.json"
@@ -2100,6 +2118,12 @@
             "schema": {
               "$ref": "#/definitions/ThroughputSettingsGetResults"
             }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
           }
         }
       }
@@ -2877,7 +2901,7 @@
     },
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}/mongodbDatabases/{databaseName}/throughputSettings/default/migrateToAutoscale": {
       "post": {
-        "operationId": "MongoDBResources_MigrateMongoDBDatabaseToAutoscale",
+        "operationId": "MongoDBResources_MigrateToAutoscaleMongoDBDatabase",
         "x-ms-examples": {
           "CosmosDBMongoDBDatabaseMigrateToAutoscale": {
             "$ref": "./examples/CosmosDBMongoDBDatabaseMigrateToAutoscale.json"
@@ -2911,13 +2935,19 @@
             "schema": {
               "$ref": "#/definitions/ThroughputSettingsGetResults"
             }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
           }
         }
       }
     },
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}/mongodbDatabases/{databaseName}/throughputSettings/default/migrateToManualThroughput": {
       "post": {
-        "operationId": "MongoDBResources_MigrateMongoDBDatabaseToManualThroughput",
+        "operationId": "MongoDBResources_MigrateToManualThroughputMongoDBDatabase",
         "x-ms-examples": {
           "CosmosDBMongoDBDatabaseMigrateToManualThroughput": {
             "$ref": "./examples/CosmosDBMongoDBDatabaseMigrateToManualThroughput.json"
@@ -2951,6 +2981,12 @@
             "schema": {
               "$ref": "#/definitions/ThroughputSettingsGetResults"
             }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
           }
         }
       }
@@ -3212,7 +3248,7 @@
     },
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}/mongodbDatabases/{databaseName}/collections/{collectionName}/throughputSettings/default/migrateToAutoscale": {
       "post": {
-        "operationId": "MongoDBResources_MigrateMongoDBCollectionToAutoscale",
+        "operationId": "MongoDBResources_MigrateToAutoscaleMongoDBCollection",
         "x-ms-examples": {
           "CosmosDBMongoDBCollectionMigrateToAutoscale": {
             "$ref": "./examples/CosmosDBMongoDBCollectionMigrateToAutoscale.json"
@@ -3249,13 +3285,19 @@
             "schema": {
               "$ref": "#/definitions/ThroughputSettingsGetResults"
             }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
           }
         }
       }
     },
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}/mongodbDatabases/{databaseName}/collections/{collectionName}/throughputSettings/default/migrateToManualThroughput": {
       "post": {
-        "operationId": "MongoDBResources_MigrateMongoDBCollectionToManualThroughput",
+        "operationId": "MongoDBResources_MigrateToManualThroughputMongoDBCollection",
         "x-ms-examples": {
           "CosmosDBMongoDBCollectionMigrateToManualThroughput": {
             "$ref": "./examples/CosmosDBMongoDBCollectionMigrateToManualThroughput.json"
@@ -3292,6 +3334,12 @@
             "schema": {
               "$ref": "#/definitions/ThroughputSettingsGetResults"
             }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
           }
         }
       }
@@ -3535,7 +3583,7 @@
     },
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}/tables/{tableName}/throughputSettings/default/migrateToAutoscale": {
       "post": {
-        "operationId": "TableResources_MigrateTableToAutoscale",
+        "operationId": "TableResources_MigrateToAutoscaleTable",
         "x-ms-examples": {
           "CosmosDBTableMigrateToAutoscale": {
             "$ref": "./examples/CosmosDBTableMigrateToAutoscale.json"
@@ -3569,13 +3617,19 @@
             "schema": {
               "$ref": "#/definitions/ThroughputSettingsGetResults"
             }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
           }
         }
       }
     },
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}/tables/{tableName}/throughputSettings/default/migrateToManualThroughput": {
       "post": {
-        "operationId": "TableResources_MigrateTableToManualThroughput",
+        "operationId": "TableResources_MigrateToManualThroughputTable",
         "x-ms-examples": {
           "CosmosDBTableMigrateToManualThroughput": {
             "$ref": "./examples/CosmosDBTableMigrateToManualThroughput.json"
@@ -3609,6 +3663,12 @@
             "schema": {
               "$ref": "#/definitions/ThroughputSettingsGetResults"
             }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
           }
         }
       }
@@ -3852,7 +3912,7 @@
     },
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}/cassandraKeyspaces/{keyspaceName}/throughputSettings/default/migrateToAutoscale": {
       "post": {
-        "operationId": "CassandraResources_MigrateCassandraKeyspaceToAutoscale",
+        "operationId": "CassandraResources_MigrateToAutoscaleCassandraKeyspace",
         "x-ms-examples": {
           "CosmosDBCassandraKeyspaceMigrateToAutoscale": {
             "$ref": "./examples/CosmosDBCassandraKeyspaceMigrateToAutoscale.json"
@@ -3886,13 +3946,19 @@
             "schema": {
               "$ref": "#/definitions/ThroughputSettingsGetResults"
             }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
           }
         }
       }
     },
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}/cassandraKeyspaces/{keyspaceName}/throughputSettings/default/migrateToManualThroughput": {
       "post": {
-        "operationId": "CassandraResources_MigrateCassandraKeyspaceToManualThroughput",
+        "operationId": "CassandraResources_MigrateToManualThroughputCassandraKeyspace",
         "x-ms-examples": {
           "CosmosDBCassandraKeyspaceMigrateToManualThroughput": {
             "$ref": "./examples/CosmosDBCassandraKeyspaceMigrateToManualThroughput.json"
@@ -3926,6 +3992,12 @@
             "schema": {
               "$ref": "#/definitions/ThroughputSettingsGetResults"
             }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
           }
         }
       }
@@ -4187,7 +4259,7 @@
     },
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}/cassandraKeyspaces/{keyspaceName}/tables/{tableName}/throughputSettings/default/migrateToAutoscale": {
       "post": {
-        "operationId": "CassandraResources_MigrateCassandraTableToAutoscale",
+        "operationId": "CassandraResources_MigrateToAutoscaleCassandraTable",
         "x-ms-examples": {
           "CosmosDBCassandraTableMigrateToAutoscale": {
             "$ref": "./examples/CosmosDBCassandraTableMigrateToAutoscale.json"
@@ -4224,13 +4296,19 @@
             "schema": {
               "$ref": "#/definitions/ThroughputSettingsGetResults"
             }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
           }
         }
       }
     },
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}/cassandraKeyspaces/{keyspaceName}/tables/{tableName}/throughputSettings/default/migrateToManualThroughput": {
       "post": {
-        "operationId": "CassandraResources_MigrateCassandraTableToManualThroughput",
+        "operationId": "CassandraResources_MigrateToManualThroughputCassandraTable",
         "x-ms-examples": {
           "CosmosDBCassandraTableMigrateToManualThroughput": {
             "$ref": "./examples/CosmosDBCassandraTableMigrateToManualThroughput.json"
@@ -4267,6 +4345,12 @@
             "schema": {
               "$ref": "#/definitions/ThroughputSettingsGetResults"
             }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
           }
         }
       }
@@ -4510,7 +4594,7 @@
     },
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}/gremlinDatabases/{databaseName}/throughputSettings/default/migrateToAutoscale": {
       "post": {
-        "operationId": "GremlinResources_MigrateGremlinDatabaseToAutoscale",
+        "operationId": "GremlinResources_MigrateToAutoscaleGremlinDatabase",
         "x-ms-examples": {
           "CosmosDBGremlinDatabaseMigrateToAutoscale": {
             "$ref": "./examples/CosmosDBGremlinDatabaseMigrateToAutoscale.json"
@@ -4544,13 +4628,19 @@
             "schema": {
               "$ref": "#/definitions/ThroughputSettingsGetResults"
             }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
           }
         }
       }
     },
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}/gremlinDatabases/{databaseName}/throughputSettings/default/migrateToManualThroughput": {
       "post": {
-        "operationId": "GremlinResources_MigrateGremlinDatabaseToManualThroughput",
+        "operationId": "GremlinResources_MigrateToManualThroughputGremlinDatabase",
         "x-ms-examples": {
           "CosmosDBGremlinDatabaseMigrateToManualThroughput": {
             "$ref": "./examples/CosmosDBGremlinDatabaseMigrateToManualThroughput.json"
@@ -4584,6 +4674,12 @@
             "schema": {
               "$ref": "#/definitions/ThroughputSettingsGetResults"
             }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
           }
         }
       }
@@ -4845,7 +4941,7 @@
     },
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}/gremlinDatabases/{databaseName}/graphs/{graphName}/throughputSettings/default/migrateToAutoscale": {
       "post": {
-        "operationId": "GremlinResources_MigrateGremlinGraphToAutoscale",
+        "operationId": "GremlinResources_MigrateToAutoscaleGremlinGraph",
         "x-ms-examples": {
           "CosmosDBGremlinGraphMigrateToAutoscale": {
             "$ref": "./examples/CosmosDBGremlinGraphMigrateToAutoscale.json"
@@ -4882,13 +4978,19 @@
             "schema": {
               "$ref": "#/definitions/ThroughputSettingsGetResults"
             }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
           }
         }
       }
     },
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.DocumentDB/databaseAccounts/{accountName}/gremlinDatabases/{databaseName}/graphs/{graphName}/throughputSettings/default/migrateToManualThroughput": {
       "post": {
-        "operationId": "GremlinResources_MigrateGremlinGraphToManualThroughput",
+        "operationId": "GremlinResources_MigrateToManualThroughputGremlinGraph",
         "x-ms-examples": {
           "CosmosDBGremlinGraphMigrateToManualThroughput": {
             "$ref": "./examples/CosmosDBGremlinGraphMigrateToManualThroughput.json"
@@ -4925,6 +5027,12 @@
             "schema": {
               "$ref": "#/definitions/ThroughputSettingsGetResults"
             }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/ErrorResponse"
+            }
           }
         }
       }