HTTP/1.1 400 BAD REQUEST
Most likely your request was not formatted correctly. If the operation did not succeed because of a problem with the request (for example, the submitted XML does not validate or a URL was invalid), you may receive an XML response with a message node detailing the issues.
HTTP/1.1 401 UNAUTHORIZED
The username and/or password is incorrect.
HTTP/1.1 403 FORBIDDEN
The user does not have authorization to access the application via the API. Contact us for assistance.