diff --git a/sdk/eventgrid/Azure.Messaging.EventGrid/api/Azure.Messaging.EventGrid.net8.0.cs b/sdk/eventgrid/Azure.Messaging.EventGrid/api/Azure.Messaging.EventGrid.net8.0.cs
index 77921eec3193..c53bbf94309c 100644
--- a/sdk/eventgrid/Azure.Messaging.EventGrid/api/Azure.Messaging.EventGrid.net8.0.cs
+++ b/sdk/eventgrid/Azure.Messaging.EventGrid/api/Azure.Messaging.EventGrid.net8.0.cs
@@ -160,6 +160,7 @@ public static partial class EventGridModelFactory
         public static Azure.Messaging.EventGrid.SystemEvents.ApiManagementGatewayHostnameConfigurationCreatedEventData ApiManagementGatewayHostnameConfigurationCreatedEventData(string resourceUri = null) { throw null; }
         public static Azure.Messaging.EventGrid.SystemEvents.ApiManagementGatewayHostnameConfigurationDeletedEventData ApiManagementGatewayHostnameConfigurationDeletedEventData(string resourceUri = null) { throw null; }
         public static Azure.Messaging.EventGrid.SystemEvents.ApiManagementGatewayHostnameConfigurationUpdatedEventData ApiManagementGatewayHostnameConfigurationUpdatedEventData(string resourceUri = null) { throw null; }
+        public static Azure.Messaging.EventGrid.SystemEvents.ApiManagementGatewayTokenExpiredRemovedEventData ApiManagementGatewayTokenExpiredRemovedEventData(string resourceUri = null) { throw null; }
         public static Azure.Messaging.EventGrid.SystemEvents.ApiManagementGatewayUpdatedEventData ApiManagementGatewayUpdatedEventData(string resourceUri = null) { throw null; }
         public static Azure.Messaging.EventGrid.SystemEvents.ApiManagementProductCreatedEventData ApiManagementProductCreatedEventData(string resourceUri = null) { throw null; }
         public static Azure.Messaging.EventGrid.SystemEvents.ApiManagementProductDeletedEventData ApiManagementProductDeletedEventData(string resourceUri = null) { throw null; }
@@ -506,6 +507,7 @@ public static partial class SystemEventNames
         public const string ApiManagementGatewayHostnameConfigurationCreated = "Microsoft.ApiManagement.GatewayHostnameConfigurationCreated";
         public const string ApiManagementGatewayHostnameConfigurationDeleted = "Microsoft.ApiManagement.GatewayHostnameConfigurationDeleted";
         public const string ApiManagementGatewayHostnameConfigurationUpdated = "Microsoft.ApiManagement.GatewayHostnameConfigurationUpdated";
+        public const string ApiManagementGatewayTokenExpiredRemoved = "Microsoft.ApiManagement.GatewayAPIRemoved";
         public const string ApiManagementGatewayUpdated = "Microsoft.ApiManagement.GatewayUpdated";
         public const string ApiManagementProductCreated = "Microsoft.ApiManagement.ProductCreated";
         public const string ApiManagementProductDeleted = "Microsoft.ApiManagement.ProductDeleted";
@@ -1728,6 +1730,11 @@ public partial class ApiManagementGatewayHostnameConfigurationUpdatedEventData
         internal ApiManagementGatewayHostnameConfigurationUpdatedEventData() { }
         public string ResourceUri { get { throw null; } }
     }
+    public partial class ApiManagementGatewayTokenExpiredRemovedEventData
+    {
+        internal ApiManagementGatewayTokenExpiredRemovedEventData() { }
+        public string ResourceUri { get { throw null; } }
+    }
     public partial class ApiManagementGatewayUpdatedEventData
     {
         internal ApiManagementGatewayUpdatedEventData() { }
diff --git a/sdk/eventgrid/Azure.Messaging.EventGrid/api/Azure.Messaging.EventGrid.netstandard2.0.cs b/sdk/eventgrid/Azure.Messaging.EventGrid/api/Azure.Messaging.EventGrid.netstandard2.0.cs
index 77921eec3193..c53bbf94309c 100644
--- a/sdk/eventgrid/Azure.Messaging.EventGrid/api/Azure.Messaging.EventGrid.netstandard2.0.cs
+++ b/sdk/eventgrid/Azure.Messaging.EventGrid/api/Azure.Messaging.EventGrid.netstandard2.0.cs
@@ -160,6 +160,7 @@ public static partial class EventGridModelFactory
         public static Azure.Messaging.EventGrid.SystemEvents.ApiManagementGatewayHostnameConfigurationCreatedEventData ApiManagementGatewayHostnameConfigurationCreatedEventData(string resourceUri = null) { throw null; }
         public static Azure.Messaging.EventGrid.SystemEvents.ApiManagementGatewayHostnameConfigurationDeletedEventData ApiManagementGatewayHostnameConfigurationDeletedEventData(string resourceUri = null) { throw null; }
         public static Azure.Messaging.EventGrid.SystemEvents.ApiManagementGatewayHostnameConfigurationUpdatedEventData ApiManagementGatewayHostnameConfigurationUpdatedEventData(string resourceUri = null) { throw null; }
+        public static Azure.Messaging.EventGrid.SystemEvents.ApiManagementGatewayTokenExpiredRemovedEventData ApiManagementGatewayTokenExpiredRemovedEventData(string resourceUri = null) { throw null; }
         public static Azure.Messaging.EventGrid.SystemEvents.ApiManagementGatewayUpdatedEventData ApiManagementGatewayUpdatedEventData(string resourceUri = null) { throw null; }
         public static Azure.Messaging.EventGrid.SystemEvents.ApiManagementProductCreatedEventData ApiManagementProductCreatedEventData(string resourceUri = null) { throw null; }
         public static Azure.Messaging.EventGrid.SystemEvents.ApiManagementProductDeletedEventData ApiManagementProductDeletedEventData(string resourceUri = null) { throw null; }
@@ -506,6 +507,7 @@ public static partial class SystemEventNames
         public const string ApiManagementGatewayHostnameConfigurationCreated = "Microsoft.ApiManagement.GatewayHostnameConfigurationCreated";
         public const string ApiManagementGatewayHostnameConfigurationDeleted = "Microsoft.ApiManagement.GatewayHostnameConfigurationDeleted";
         public const string ApiManagementGatewayHostnameConfigurationUpdated = "Microsoft.ApiManagement.GatewayHostnameConfigurationUpdated";
+        public const string ApiManagementGatewayTokenExpiredRemoved = "Microsoft.ApiManagement.GatewayAPIRemoved";
         public const string ApiManagementGatewayUpdated = "Microsoft.ApiManagement.GatewayUpdated";
         public const string ApiManagementProductCreated = "Microsoft.ApiManagement.ProductCreated";
         public const string ApiManagementProductDeleted = "Microsoft.ApiManagement.ProductDeleted";
@@ -1728,6 +1730,11 @@ public partial class ApiManagementGatewayHostnameConfigurationUpdatedEventData
         internal ApiManagementGatewayHostnameConfigurationUpdatedEventData() { }
         public string ResourceUri { get { throw null; } }
     }
+    public partial class ApiManagementGatewayTokenExpiredRemovedEventData
+    {
+        internal ApiManagementGatewayTokenExpiredRemovedEventData() { }
+        public string ResourceUri { get { throw null; } }
+    }
     public partial class ApiManagementGatewayUpdatedEventData
     {
         internal ApiManagementGatewayUpdatedEventData() { }
diff --git a/sdk/eventgrid/Azure.Messaging.EventGrid/src/Generated/EventGridModelFactory.cs b/sdk/eventgrid/Azure.Messaging.EventGrid/src/Generated/EventGridModelFactory.cs
index fdc005e4a49a..fc55d1315781 100644
--- a/sdk/eventgrid/Azure.Messaging.EventGrid/src/Generated/EventGridModelFactory.cs
+++ b/sdk/eventgrid/Azure.Messaging.EventGrid/src/Generated/EventGridModelFactory.cs
@@ -3916,6 +3916,14 @@ public static ApiManagementGatewayApiRemovedEventData ApiManagementGatewayApiRem
             return new ApiManagementGatewayApiRemovedEventData(resourceUri);
         }
 
+        /// <summary> Initializes a new instance of <see cref="SystemEvents.ApiManagementGatewayTokenExpiredRemovedEventData"/>. </summary>
+        /// <param name="resourceUri"> The fully qualified ID of the resource that the compliance state change is for, including the resource name and resource type. Uses the format, `/subscriptions/&lt;SubscriptionID&gt;/resourceGroups/&lt;ResourceGroup&gt;/Microsoft.ApiManagement/service/&lt;ServiceName&gt;/gateways/&lt;GatewayName&gt;/apis/&lt;ResourceName&gt;`. </param>
+        /// <returns> A new <see cref="SystemEvents.ApiManagementGatewayTokenExpiredRemovedEventData"/> instance for mocking. </returns>
+        public static ApiManagementGatewayTokenExpiredRemovedEventData ApiManagementGatewayTokenExpiredRemovedEventData(string resourceUri = null)
+        {
+            return new ApiManagementGatewayTokenExpiredRemovedEventData(resourceUri);
+        }
+
         /// <summary> Initializes a new instance of <see cref="SystemEvents.HealthcareFhirResourceCreatedEventData"/>. </summary>
         /// <param name="fhirResourceType"> Type of HL7 FHIR resource. </param>
         /// <param name="fhirServiceHostName"> Domain name of FHIR account for this resource. </param>
diff --git a/sdk/eventgrid/Azure.Messaging.EventGrid/src/Generated/Models/ApiManagementGatewayTokenExpiredRemovedEventData.Serialization.cs b/sdk/eventgrid/Azure.Messaging.EventGrid/src/Generated/Models/ApiManagementGatewayTokenExpiredRemovedEventData.Serialization.cs
new file mode 100644
index 000000000000..82b8891af516
--- /dev/null
+++ b/sdk/eventgrid/Azure.Messaging.EventGrid/src/Generated/Models/ApiManagementGatewayTokenExpiredRemovedEventData.Serialization.cs
@@ -0,0 +1,57 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+// <auto-generated/>
+
+#nullable disable
+
+using System;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+namespace Azure.Messaging.EventGrid.SystemEvents
+{
+    [JsonConverter(typeof(ApiManagementGatewayTokenExpiredRemovedEventDataConverter))]
+    public partial class ApiManagementGatewayTokenExpiredRemovedEventData
+    {
+        internal static ApiManagementGatewayTokenExpiredRemovedEventData DeserializeApiManagementGatewayTokenExpiredRemovedEventData(JsonElement element)
+        {
+            if (element.ValueKind == JsonValueKind.Null)
+            {
+                return null;
+            }
+            string resourceUri = default;
+            foreach (var property in element.EnumerateObject())
+            {
+                if (property.NameEquals("resourceUri"u8))
+                {
+                    resourceUri = property.Value.GetString();
+                    continue;
+                }
+            }
+            return new ApiManagementGatewayTokenExpiredRemovedEventData(resourceUri);
+        }
+
+        /// <summary> Deserializes the model from a raw response. </summary>
+        /// <param name="response"> The response to deserialize the model from. </param>
+        internal static ApiManagementGatewayTokenExpiredRemovedEventData FromResponse(Response response)
+        {
+            using var document = JsonDocument.Parse(response.Content, ModelSerializationExtensions.JsonDocumentOptions);
+            return DeserializeApiManagementGatewayTokenExpiredRemovedEventData(document.RootElement);
+        }
+
+        internal partial class ApiManagementGatewayTokenExpiredRemovedEventDataConverter : JsonConverter<ApiManagementGatewayTokenExpiredRemovedEventData>
+        {
+            public override void Write(Utf8JsonWriter writer, ApiManagementGatewayTokenExpiredRemovedEventData model, JsonSerializerOptions options)
+            {
+                throw new NotImplementedException();
+            }
+
+            public override ApiManagementGatewayTokenExpiredRemovedEventData Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+            {
+                using var document = JsonDocument.ParseValue(ref reader);
+                return DeserializeApiManagementGatewayTokenExpiredRemovedEventData(document.RootElement);
+            }
+        }
+    }
+}
diff --git a/sdk/eventgrid/Azure.Messaging.EventGrid/src/Generated/Models/ApiManagementGatewayTokenExpiredRemovedEventData.cs b/sdk/eventgrid/Azure.Messaging.EventGrid/src/Generated/Models/ApiManagementGatewayTokenExpiredRemovedEventData.cs
new file mode 100644
index 000000000000..406d37aa1558
--- /dev/null
+++ b/sdk/eventgrid/Azure.Messaging.EventGrid/src/Generated/Models/ApiManagementGatewayTokenExpiredRemovedEventData.cs
@@ -0,0 +1,28 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+// <auto-generated/>
+
+#nullable disable
+
+namespace Azure.Messaging.EventGrid.SystemEvents
+{
+    /// <summary> Schema of the Data property of an EventGridEvent for a Microsoft.ApiManagement.GatewayAPIRemoved event. </summary>
+    public partial class ApiManagementGatewayTokenExpiredRemovedEventData
+    {
+        /// <summary> Initializes a new instance of <see cref="ApiManagementGatewayTokenExpiredRemovedEventData"/>. </summary>
+        internal ApiManagementGatewayTokenExpiredRemovedEventData()
+        {
+        }
+
+        /// <summary> Initializes a new instance of <see cref="ApiManagementGatewayTokenExpiredRemovedEventData"/>. </summary>
+        /// <param name="resourceUri"> The fully qualified ID of the resource that the compliance state change is for, including the resource name and resource type. Uses the format, `/subscriptions/&lt;SubscriptionID&gt;/resourceGroups/&lt;ResourceGroup&gt;/Microsoft.ApiManagement/service/&lt;ServiceName&gt;/gateways/&lt;GatewayName&gt;/apis/&lt;ResourceName&gt;`. </param>
+        internal ApiManagementGatewayTokenExpiredRemovedEventData(string resourceUri)
+        {
+            ResourceUri = resourceUri;
+        }
+
+        /// <summary> The fully qualified ID of the resource that the compliance state change is for, including the resource name and resource type. Uses the format, `/subscriptions/&lt;SubscriptionID&gt;/resourceGroups/&lt;ResourceGroup&gt;/Microsoft.ApiManagement/service/&lt;ServiceName&gt;/gateways/&lt;GatewayName&gt;/apis/&lt;ResourceName&gt;`. </summary>
+        public string ResourceUri { get; }
+    }
+}
diff --git a/sdk/eventgrid/Azure.Messaging.EventGrid/src/autorest.md b/sdk/eventgrid/Azure.Messaging.EventGrid/src/autorest.md
index b12e339e22f2..b6eb004c3cce 100644
--- a/sdk/eventgrid/Azure.Messaging.EventGrid/src/autorest.md
+++ b/sdk/eventgrid/Azure.Messaging.EventGrid/src/autorest.md
@@ -4,7 +4,9 @@ Run `dotnet build /t:GenerateCode` to generate code.
 
 ``` yaml
 title: EventGridClient
-require: https://github.com/Azure/azure-rest-api-specs/blob/8af03db33a90581edffb8a32fea562f36b7c61a8/specification/eventgrid/data-plane/readme.md
+require:
+- /mnt/vss/_work/1/s/azure-rest-api-specs/specification/eventgrid/data-plane/readme.md
+
 generation1-convenience-client: true
 model-factory-for-hlc:
 - MediaJobOutputAsset
@@ -209,3 +211,4 @@ directive:
     $.MediaLiveEventIngestHeartbeatEventData["properties"]["ingestDriftValue"]["x-ms-client-name"] = "IngestDriftValueInternal";
     $.MediaLiveEventIngestHeartbeatEventData["properties"]["lastFragmentArrivalTime"]["format"] = "date-time";
 ```
+