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 33127bb2c852..b8e708697740 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
@@ -283,7 +283,7 @@ public static partial class EventGridModelFactory
         public static Azure.Messaging.EventGrid.SystemEvents.ResourceNotificationsHealthResourcesAnnotatedEventData ResourceNotificationsHealthResourcesAnnotatedEventData(Azure.Messaging.EventGrid.SystemEvents.ResourceNotificationsResourceUpdatedDetails resourceDetails = null, Azure.Messaging.EventGrid.SystemEvents.ResourceNotificationsOperationalDetails operationalDetails = null, string apiVersion = null) { throw null; }
         public static Azure.Messaging.EventGrid.SystemEvents.ResourceNotificationsHealthResourcesAvailabilityStatusChangedEventData ResourceNotificationsHealthResourcesAvailabilityStatusChangedEventData(Azure.Messaging.EventGrid.SystemEvents.ResourceNotificationsResourceUpdatedDetails resourceDetails = null, Azure.Messaging.EventGrid.SystemEvents.ResourceNotificationsOperationalDetails operationalDetails = null, string apiVersion = null) { throw null; }
         public static Azure.Messaging.EventGrid.SystemEvents.ResourceNotificationsOperationalDetails ResourceNotificationsOperationalDetails(System.DateTimeOffset? resourceEventTime = default(System.DateTimeOffset?)) { throw null; }
-        public static Azure.Messaging.EventGrid.SystemEvents.ResourceNotificationsResourceUpdatedDetails ResourceNotificationsResourceUpdatedDetails(string id = null, string name = null, string type = null, string location = null, string tags = null, System.Collections.Generic.IReadOnlyDictionary<string, object> properties = null) { throw null; }
+        public static Azure.Messaging.EventGrid.SystemEvents.ResourceNotificationsResourceUpdatedDetails ResourceNotificationsResourceUpdatedDetails(string id = null, string name = null, string resourceType = null, string location = null, string tags = null, System.Collections.Generic.IReadOnlyDictionary<string, object> properties = null) { throw null; }
         public static Azure.Messaging.EventGrid.SystemEvents.ResourceNotificationsResourceUpdatedEventData ResourceNotificationsResourceUpdatedEventData(Azure.Messaging.EventGrid.SystemEvents.ResourceNotificationsResourceUpdatedDetails resourceDetails = null, Azure.Messaging.EventGrid.SystemEvents.ResourceNotificationsOperationalDetails operationalDetails = null, string apiVersion = null) { throw null; }
         public static Azure.Messaging.EventGrid.SystemEvents.ResourceWriteCancelEventData ResourceWriteCancelEventData(string tenantId = null, string subscriptionId = null, string resourceGroup = null, string resourceProvider = null, string resourceUri = null, string operationName = null, string status = null, string authorization = null, string claims = null, string correlationId = null, string httpRequest = null) { throw null; }
         public static Azure.Messaging.EventGrid.SystemEvents.ResourceWriteFailureEventData ResourceWriteFailureEventData(string tenantId = null, string subscriptionId = null, string resourceGroup = null, string resourceProvider = null, string resourceUri = null, string operationName = null, string status = null, string authorization = null, string claims = null, string correlationId = null, string httpRequest = null) { throw null; }
@@ -2757,8 +2757,8 @@ internal ResourceNotificationsResourceUpdatedDetails() { }
         public string Location { get { throw null; } }
         public string Name { get { throw null; } }
         public System.Collections.Generic.IReadOnlyDictionary<string, object> Properties { get { throw null; } }
+        public string ResourceType { get { throw null; } }
         public string Tags { get { throw null; } }
-        public string Type { get { throw null; } }
     }
     public partial class ResourceNotificationsResourceUpdatedEventData
     {
diff --git a/sdk/eventgrid/Azure.Messaging.EventGrid/src/Customization/ResourceNotificationsResourceUpdatedDetails.cs b/sdk/eventgrid/Azure.Messaging.EventGrid/src/Customization/ResourceNotificationsResourceUpdatedDetails.cs
new file mode 100644
index 000000000000..0e0c387be0d8
--- /dev/null
+++ b/sdk/eventgrid/Azure.Messaging.EventGrid/src/Customization/ResourceNotificationsResourceUpdatedDetails.cs
@@ -0,0 +1,15 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+using Azure.Core;
+
+namespace Azure.Messaging.EventGrid.SystemEvents
+{
+    /// <summary> Describes the schema of the properties under resource info which are common across all ARN system topic events. </summary>
+    public partial class ResourceNotificationsResourceUpdatedDetails
+    {
+        /// <summary> the type of the resource for which the event is being emitted. </summary>
+        [CodeGenMember("Type")]
+        public string ResourceType { get; }
+    }
+}
\ No newline at end of file
diff --git a/sdk/eventgrid/Azure.Messaging.EventGrid/src/Generated/EventGridModelFactory.cs b/sdk/eventgrid/Azure.Messaging.EventGrid/src/Generated/EventGridModelFactory.cs
index d46869293edf..241b4ce80ab0 100644
--- a/sdk/eventgrid/Azure.Messaging.EventGrid/src/Generated/EventGridModelFactory.cs
+++ b/sdk/eventgrid/Azure.Messaging.EventGrid/src/Generated/EventGridModelFactory.cs
@@ -3023,16 +3023,16 @@ public static HealthcareDicomImageDeletedEventData HealthcareDicomImageDeletedEv
         /// <summary> Initializes a new instance of ResourceNotificationsResourceUpdatedDetails. </summary>
         /// <param name="id"> id of the resource for which the event is being emitted. </param>
         /// <param name="name"> name of the resource for which the event is being emitted. </param>
-        /// <param name="type"> the type of the resource for which the event is being emitted. </param>
+        /// <param name="resourceType"> the type of the resource for which the event is being emitted. </param>
         /// <param name="location"> the location of the resource for which the event is being emitted. </param>
         /// <param name="tags"> the tags on the resource for which the event is being emitted. </param>
         /// <param name="properties"> properties in the payload of the resource for which the event is being emitted. </param>
         /// <returns> A new <see cref="SystemEvents.ResourceNotificationsResourceUpdatedDetails"/> instance for mocking. </returns>
-        public static ResourceNotificationsResourceUpdatedDetails ResourceNotificationsResourceUpdatedDetails(string id = null, string name = null, string type = null, string location = null, string tags = null, IReadOnlyDictionary<string, object> properties = null)
+        public static ResourceNotificationsResourceUpdatedDetails ResourceNotificationsResourceUpdatedDetails(string id = null, string name = null, string resourceType = null, string location = null, string tags = null, IReadOnlyDictionary<string, object> properties = null)
         {
             properties ??= new Dictionary<string, object>();
 
-            return new ResourceNotificationsResourceUpdatedDetails(id, name, type, location, tags, properties);
+            return new ResourceNotificationsResourceUpdatedDetails(id, name, resourceType, location, tags, properties);
         }
 
         /// <summary> Initializes a new instance of ResourceNotificationsOperationalDetails. </summary>
diff --git a/sdk/eventgrid/Azure.Messaging.EventGrid/src/Generated/Models/ResourceNotificationsResourceUpdatedDetails.cs b/sdk/eventgrid/Azure.Messaging.EventGrid/src/Generated/Models/ResourceNotificationsResourceUpdatedDetails.cs
index fb5f2be7f951..fcd2375d12c6 100644
--- a/sdk/eventgrid/Azure.Messaging.EventGrid/src/Generated/Models/ResourceNotificationsResourceUpdatedDetails.cs
+++ b/sdk/eventgrid/Azure.Messaging.EventGrid/src/Generated/Models/ResourceNotificationsResourceUpdatedDetails.cs
@@ -22,15 +22,15 @@ internal ResourceNotificationsResourceUpdatedDetails()
         /// <summary> Initializes a new instance of ResourceNotificationsResourceUpdatedDetails. </summary>
         /// <param name="id"> id of the resource for which the event is being emitted. </param>
         /// <param name="name"> name of the resource for which the event is being emitted. </param>
-        /// <param name="type"> the type of the resource for which the event is being emitted. </param>
+        /// <param name="resourceType"> the type of the resource for which the event is being emitted. </param>
         /// <param name="location"> the location of the resource for which the event is being emitted. </param>
         /// <param name="tags"> the tags on the resource for which the event is being emitted. </param>
         /// <param name="properties"> properties in the payload of the resource for which the event is being emitted. </param>
-        internal ResourceNotificationsResourceUpdatedDetails(string id, string name, string type, string location, string tags, IReadOnlyDictionary<string, object> properties)
+        internal ResourceNotificationsResourceUpdatedDetails(string id, string name, string resourceType, string location, string tags, IReadOnlyDictionary<string, object> properties)
         {
             Id = id;
             Name = name;
-            Type = type;
+            ResourceType = resourceType;
             Location = location;
             Tags = tags;
             Properties = properties;
@@ -40,8 +40,6 @@ internal ResourceNotificationsResourceUpdatedDetails(string id, string name, str
         public string Id { get; }
         /// <summary> name of the resource for which the event is being emitted. </summary>
         public string Name { get; }
-        /// <summary> the type of the resource for which the event is being emitted. </summary>
-        public string Type { get; }
         /// <summary> the location of the resource for which the event is being emitted. </summary>
         public string Location { get; }
         /// <summary> the tags on the resource for which the event is being emitted. </summary>