/errors/authorization_error.proto 

--- v15/errors/authorization_error.proto    2024-02-20 20:29:00.000000000 +0000
+++ v16/errors/authorization_error.proto    2024-02-20 20:29:02.000000000 +0000
@@ -91,5 +91,9 @@

     // The Google Cloud project is not under the required organization.
     CLOUD_PROJECT_NOT_UNDER_ORGANIZATION = 27;
+
+    // The user does not have permission to perform this action on the resource
+    // or method because the Google Ads account is suspended.
+    ACTION_NOT_PERMITTED_FOR_SUSPENDED_ACCOUNT = 28;
   }
 }