Error codes

You may encounter the following error codes while working with the Communications API.

Code Title Description
499 Cancelled The operation is cancelled.
500 Unknown Unknown error.
400 Invalid_Argument Request contains an invalid argument.
504 Deadline_Exceeded Deadline expired before operation could complete.
404 Not_found Requested entity was not found.
409 Already_Exists Request entity already exists.
403 Permission_denied The caller does not have permission.
429 Resource_Exhausted Resource has been exhausted (eg.check quote).
400 Failed_Precondition Precondition check failed.
409 Aborted The operation was aborted.
500 Internal Internal error encountered.
503 Unavailable The service is unavailable.
401 Unauthenticated The request does not have valid authenticated credentials.