Get Mail Mergefields name issue calling getDocumentFieldNames | Aspose.Words REST API

Suddenly seeing this error when trying to make calls to getDocumentFieldNames

{
  "Error": {
    "Code": "accessRestricted",
    "Message": "Customer not found.",
    "Description": "Operation Failed. A limit was hit."
  }
}

@divvyhomes

We reproduced the issue and investigating the issue for the fix. We notify you as soon as it is resolved.

@divvyhomes

We have fixed the issue. Please try now, it should work as expected.