Status Codes

Table 1 lists the status codes that may be returned.

**Table 1** Normal status codes
Status Code	Message	Description
200	OK	The request has been processed successfully.
202	OK	The asynchronous request is submitted successfully.

Table 2 lists the status codes that may be returned.

**Table 2** Abnormal status codes
Status Code	Message	Description
400	Bad Request	The server fails to process the request. The possible causes are as follows: The request could not be parsed by the server due to incorrect syntax. Request parameters are incorrect.
401	Unauthorized	Necessary credentials (for example, username and password) required for user authentication are not provided.
403	Forbidden	Access to the requested page is denied.
404	Not Found	The request failed because the requested resource could not be found on the server.
405	Method Not Allowed	You are not allowed to use the method specified in the request.
409	Conflict	The request could not be processed due to a conflict with the current resource status.
413	Request Entity Too Large	The requested resource exceeds the resource quota.
415	Unsupported Media Type	ContentType contained in the request header is neither application nor json.
500	Internal Server Error	The request is not completed due to a service error.
501	Not Implemented	The request is not completed because the server does not support the requested function.
503	Service Unavailable	The request could not be processed by the server because the server is being maintained or overloaded.