diff --git a/sdk/purview/Azure.Analytics.Purview.Catalog/src/Generated/PurviewEntities.cs b/sdk/purview/Azure.Analytics.Purview.Catalog/src/Generated/PurviewEntities.cs
index 791ae40e99a1..9be987960c58 100644
--- a/sdk/purview/Azure.Analytics.Purview.Catalog/src/Generated/PurviewEntities.cs
+++ b/sdk/purview/Azure.Analytics.Purview.Catalog/src/Generated/PurviewEntities.cs
@@ -324,12 +324,12 @@ public virtual Response CreateOrUpdate(RequestContent content, RequestContext co
         }
 
         /// <summary> List entities in bulk identified by its GUIDs. </summary>
-        /// <param name="guids"> An array of GUIDs of entities to create. </param>
+        /// <param name="guid"> An array of GUIDs of entities to create. </param>
         /// <param name="minExtInfo"> Whether to return minimal information for referred entities. </param>
         /// <param name="ignoreRelationships"> Whether to ignore relationship attributes. </param>
         /// <param name="excludeRelationshipTypes"> An array of the relationship types need to be excluded from the response. </param>
         /// <param name="context"> The request context, which can override default behaviors on the request on a per-call basis. </param>
-        /// <exception cref="ArgumentNullException"> <paramref name="guids"/> is null. </exception>
+        /// <exception cref="ArgumentNullException"> <paramref name="guid"/> is null. </exception>
         /// <remarks>
         /// Schema for <c>Response Body</c>:
         /// <code>{
@@ -400,16 +400,16 @@ public virtual Response CreateOrUpdate(RequestContent content, RequestContext co
         /// 
         /// </remarks>
 #pragma warning disable AZC0002
-        public virtual async Task<Response> GetByGuidsAsync(IEnumerable<string> guids, bool? minExtInfo = null, bool? ignoreRelationships = null, IEnumerable<string> excludeRelationshipTypes = null, RequestContext context = null)
+        public virtual async Task<Response> GetByGuidsAsync(IEnumerable<string> guid, bool? minExtInfo = null, bool? ignoreRelationships = null, IEnumerable<string> excludeRelationshipTypes = null, RequestContext context = null)
 #pragma warning restore AZC0002
         {
-            Argument.AssertNotNull(guids, nameof(guids));
+            Argument.AssertNotNull(guid, nameof(guid));
 
             using var scope = _clientDiagnostics.CreateScope("PurviewEntities.GetByGuids");
             scope.Start();
             try
             {
-                using HttpMessage message = CreateGetByGuidsRequest(guids, minExtInfo, ignoreRelationships, excludeRelationshipTypes, context);
+                using HttpMessage message = CreateGetByGuidsRequest(guid, minExtInfo, ignoreRelationships, excludeRelationshipTypes, context);
                 return await _pipeline.ProcessMessageAsync(message, _clientDiagnostics, context).ConfigureAwait(false);
             }
             catch (Exception e)
@@ -420,12 +420,12 @@ public virtual async Task<Response> GetByGuidsAsync(IEnumerable<string> guids, b
         }
 
         /// <summary> List entities in bulk identified by its GUIDs. </summary>
-        /// <param name="guids"> An array of GUIDs of entities to create. </param>
+        /// <param name="guid"> An array of GUIDs of entities to create. </param>
         /// <param name="minExtInfo"> Whether to return minimal information for referred entities. </param>
         /// <param name="ignoreRelationships"> Whether to ignore relationship attributes. </param>
         /// <param name="excludeRelationshipTypes"> An array of the relationship types need to be excluded from the response. </param>
         /// <param name="context"> The request context, which can override default behaviors on the request on a per-call basis. </param>
-        /// <exception cref="ArgumentNullException"> <paramref name="guids"/> is null. </exception>
+        /// <exception cref="ArgumentNullException"> <paramref name="guid"/> is null. </exception>
         /// <remarks>
         /// Schema for <c>Response Body</c>:
         /// <code>{
@@ -496,16 +496,16 @@ public virtual async Task<Response> GetByGuidsAsync(IEnumerable<string> guids, b
         /// 
         /// </remarks>
 #pragma warning disable AZC0002
-        public virtual Response GetByGuids(IEnumerable<string> guids, bool? minExtInfo = null, bool? ignoreRelationships = null, IEnumerable<string> excludeRelationshipTypes = null, RequestContext context = null)
+        public virtual Response GetByGuids(IEnumerable<string> guid, bool? minExtInfo = null, bool? ignoreRelationships = null, IEnumerable<string> excludeRelationshipTypes = null, RequestContext context = null)
 #pragma warning restore AZC0002
         {
-            Argument.AssertNotNull(guids, nameof(guids));
+            Argument.AssertNotNull(guid, nameof(guid));
 
             using var scope = _clientDiagnostics.CreateScope("PurviewEntities.GetByGuids");
             scope.Start();
             try
             {
-                using HttpMessage message = CreateGetByGuidsRequest(guids, minExtInfo, ignoreRelationships, excludeRelationshipTypes, context);
+                using HttpMessage message = CreateGetByGuidsRequest(guid, minExtInfo, ignoreRelationships, excludeRelationshipTypes, context);
                 return _pipeline.ProcessMessage(message, _clientDiagnostics, context);
             }
             catch (Exception e)
@@ -3590,7 +3590,7 @@ internal HttpMessage CreateCreateOrUpdateRequest(RequestContent content, Request
             return message;
         }
 
-        internal HttpMessage CreateGetByGuidsRequest(IEnumerable<string> guids, bool? minExtInfo, bool? ignoreRelationships, IEnumerable<string> excludeRelationshipTypes, RequestContext context)
+        internal HttpMessage CreateGetByGuidsRequest(IEnumerable<string> guid, bool? minExtInfo, bool? ignoreRelationships, IEnumerable<string> excludeRelationshipTypes, RequestContext context)
         {
             var message = _pipeline.CreateMessage(context);
             var request = message.Request;
@@ -3599,9 +3599,9 @@ internal HttpMessage CreateGetByGuidsRequest(IEnumerable<string> guids, bool? mi
             uri.Reset(_endpoint);
             uri.AppendRaw("/catalog/api", false);
             uri.AppendPath("/atlas/v2/entity/bulk", false);
-            foreach (var param in guids)
+            foreach (var param in guid)
             {
-                uri.AppendQuery("guids", param, true);
+                uri.AppendQuery("guid", param, true);
             }
             if (minExtInfo != null)
             {
diff --git a/sdk/purview/Azure.Analytics.Purview.Catalog/src/autorest.md b/sdk/purview/Azure.Analytics.Purview.Catalog/src/autorest.md
index f9b5e77721fb..4b4a3a04c71a 100644
--- a/sdk/purview/Azure.Analytics.Purview.Catalog/src/autorest.md
+++ b/sdk/purview/Azure.Analytics.Purview.Catalog/src/autorest.md
@@ -4,7 +4,7 @@ Run `dotnet build /t:GenerateCode` to generate code.
 
 ```yaml
 title: PurviewCatalog
-input-file: https://raw.githubusercontent.com/Azure/azure-rest-api-specs/d23ad89e8c3e98c4f941fd9ec3db6ab39951a494/specification/purview/data-plane/Azure.Analytics.Purview.Catalog/preview/2021-05-01-preview/purviewcatalog.json
+input-file: https://github.com/Azure/azure-rest-api-specs/blob/c7484084df2355bf25846558eb15eea585a8be95/specification/purview/data-plane/Azure.Analytics.Purview.Catalog/preview/2021-05-01-preview/purviewcatalog.json
 namespace: Azure.Analytics.Purview.Catalog
 data-plane: true
 security: AADToken