diff --git a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2021-10-01/costmanagement.exports.json b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2021-10-01/costmanagement.exports.json
index da3344170e25..04eded4633c5 100644
--- a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2021-10-01/costmanagement.exports.json
+++ b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2021-10-01/costmanagement.exports.json
@@ -650,11 +650,7 @@
         "sasToken": {
           "description": "A SAS token for the storage account. For a restricted set of Azure customers this together with storageAccount can be specified instead of resourceId. Note: the value returned by the API for this property will always be obfuscated. Returning this same obfuscated value will not result in the SAS token being updated. To update this value a new SAS token must be specified.",
           "type": "string",
-          "x-ms-secret": true,
-          "x-ms-mutability": [
-            "create",
-            "update"
-          ]
+          "x-ms-secret": true
         },
         "storageAccount": {
           "description": "The storage account where exports will be uploaded. For a restricted set of Azure customers this together with sasToken can be specified instead of resourceId.",
diff --git a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2021-10-01/costmanagement.json b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2021-10-01/costmanagement.json
index c13c6dc8ac4c..96f336d07c44 100644
--- a/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2021-10-01/costmanagement.json
+++ b/specification/cost-management/resource-manager/Microsoft.CostManagement/stable/2021-10-01/costmanagement.json
@@ -2164,6 +2164,11 @@
       "description": "A Cost management REST API operation.",
       "type": "object",
       "properties": {
+        "id": {
+          "description": "Operation id: {provider}/{resource}/{operation}.",
+          "type": "string",
+          "readOnly": true
+        },
         "name": {
           "description": "Operation name: {provider}/{resource}/{operation}.",
           "type": "string",
@@ -2187,6 +2192,11 @@
               "description": "Operation type: Read, write, delete, etc.",
               "type": "string",
               "readOnly": true
+            },
+            "description": {
+              "description": "Operation description",
+              "type": "string",
+              "readOnly": true
             }
           }
         }