Status codes

Every SDK answer carries a status (Status). Check it on every call.

Code	Meaning	What to do
200	Success	Nothing to do.
400	Bad request	Check the parameters you send (email, file size).
401	Unauthorized	Check the serial, API user and API password, and the environment.
403	Forbidden	Invalid or expired licence.
404	Not found	Message or resource not found.
409	Conflict	Message already processed or expired.
429	Too many requests	Slow down your calls.
500	Server error	Try again later.
503	Service unavailable	Maintenance in progress; try again later.