diff --git a/specification/fileshares/FileShares.Management/fileshares.tsp b/specification/fileshares/FileShares.Management/fileshares.tsp
index dbbfd2eed2ff..e3126cc289e1 100644
--- a/specification/fileshares/FileShares.Management/fileshares.tsp
+++ b/specification/fileshares/FileShares.Management/fileshares.tsp
@@ -298,23 +298,14 @@ interface FileShareSnapshots {
   #suppress "@azure-tools/typespec-azure-resource-manager/arm-put-operation-response-codes" "RP doesn't support 201 Created pattern for proxy resources in public preview. To be addressed in GA."
   @operationId("FileShareSnapshot_CreateOrUpdate")
   @doc("Create a FileShareSnapshot.")
-  createOrUpdateFileShareSnapshot is ArmResourceCreateOrReplaceAsync<
-    FileShareSnapshot,
-    BaseParameters<FileShareSnapshot>,
-    Response = ArmAcceptedLroResponse<LroHeaders = ArmAsyncOperationHeader &
-      ArmLroLocationHeader<FinalResult = FileShareSnapshot> &
-      Azure.Core.Foundations.RetryAfterHeader>
-  >;
+  createOrUpdateFileShareSnapshot is ArmResourceCreateOrReplaceSync<FileShareSnapshot>;
 
   @operationId("FileShareSnapshot_Update")
   @doc("Update a FileShareSnapshot.")
   updateFileShareSnapshot is ArmCustomPatchAsync<
     FileShareSnapshot,
     ResourceUpdateModel<FileShareSnapshot, FileShareSnapshotProperties>,
-    BaseParameters<FileShareSnapshot>,
-    Response = ArmAcceptedLroResponse<LroHeaders = ArmAsyncOperationHeader &
-      ArmLroLocationHeader<FinalResult = FileShareSnapshot> &
-      Azure.Core.Foundations.RetryAfterHeader>
+    BaseParameters<FileShareSnapshot>
   >;
 
   @operationId("FileShareSnapshot_Delete")
diff --git a/specification/fileshares/resource-manager/Microsoft.FileShares/preview/2025-06-01-preview/fileshares.json b/specification/fileshares/resource-manager/Microsoft.FileShares/preview/2025-06-01-preview/fileshares.json
index 1a6c0b1cd2b8..19079db9bce5 100644
--- a/specification/fileshares/resource-manager/Microsoft.FileShares/preview/2025-06-01-preview/fileshares.json
+++ b/specification/fileshares/resource-manager/Microsoft.FileShares/preview/2025-06-01-preview/fileshares.json
@@ -760,22 +760,16 @@
           }
         ],
         "responses": {
-          "202": {
-            "description": "Resource operation accepted.",
-            "headers": {
-              "Azure-AsyncOperation": {
-                "type": "string",
-                "description": "A link to the status monitor"
-              },
-              "Location": {
-                "type": "string",
-                "description": "The Location header contains the URL where the status of the long running operation can be checked."
-              },
-              "Retry-After": {
-                "type": "integer",
-                "format": "int32",
-                "description": "The Retry-After header can indicate how long the client should wait before polling the operation status."
-              }
+          "200": {
+            "description": "Resource 'FileShareSnapshot' update operation succeeded",
+            "schema": {
+              "$ref": "#/definitions/FileShareSnapshot"
+            }
+          },
+          "201": {
+            "description": "Resource 'FileShareSnapshot' create operation succeeded",
+            "schema": {
+              "$ref": "#/definitions/FileShareSnapshot"
             }
           },
           "default": {
@@ -789,11 +783,7 @@
           "FileShareSnapshot_CreateOrUpdate_MaximumSet": {
             "$ref": "./examples/FileShareSnapshot_CreateOrUpdate_MaximumSet_Gen.json"
           }
-        },
-        "x-ms-long-running-operation-options": {
-          "final-state-via": "location"
-        },
-        "x-ms-long-running-operation": true
+        }
       },
       "patch": {
         "operationId": "FileShareSnapshot_Update",
@@ -838,13 +828,15 @@
           }
         ],
         "responses": {
+          "200": {
+            "description": "Azure operation completed successfully.",
+            "schema": {
+              "$ref": "#/definitions/FileShareSnapshot"
+            }
+          },
           "202": {
-            "description": "Resource operation accepted.",
+            "description": "Resource update request accepted.",
             "headers": {
-              "Azure-AsyncOperation": {
-                "type": "string",
-                "description": "A link to the status monitor"
-              },
               "Location": {
                 "type": "string",
                 "description": "The Location header contains the URL where the status of the long running operation can be checked."