Returned Values for General Requests

Normal

Returned Value	Description
200	Request succeeded.
201	Request processed.
202	After the task is successfully delivered, the task to be delivered shall be postponed because the system is busy.
204	Task delivered.

Abnormal

Returned Value	Description
300 multiple choices	The requested resource has multiple available responses.
400 Bad Request	The server failed to process the request.
401 Unauthorized	You need to enter the username and password to access the page requested.
403 Forbidden	You are forbidden to access the page requested.
404 Not Found	The server cannot find the page requested.
405 Method Not Allowed	You are not allowed to use the method specified in the request.
406 Not Acceptable	The response generated by the server cannot be accepted by the client.
407 Proxy Authentication Required	You must use the proxy server for authentication. Then, the request can be processed.
408 Request Timeout	The request timed out.
409 Conflict	The request cannot be processed due to a conflict.
429 Too Many Requests	The request throttling threshold is reached.
500 Internal Server Error	Failed to complete the request because an internal service error occurs. A service exception occurred.
501 Not Implemented	Failed to complete the request because an internal service error occurs. The server does not support the requested function.
502 Bad Gateway	Failed to complete the request because an internal service error occurs. Failed to complete the request because the server receives an invalid request.
503 Service Unavailable	Failed to complete the request because an internal service error occurs. The system is currently unavailable.
504 Gateway Timeout	A gateway timeout error occurs.