I'm trying to pull down a PDF for a received fax. I can see the received fax in the Call Log (result="Received"). I can see the fax and download it from a browser when logging in. However, when I try to call the GetMessage endpoint (https://platform.ringcentral.com/restapi/v1.0/account/~/extension/{extensionId}/message-store/{messageId}), I get a 404 not found with the error message
CMN-102: Resource for parameter [messageId] is not found.
Any idea why?