# Status Code

- Normal

  Status Code | Message | Description
  --- | --- | ---
  200 | OK | Request succeeded.
  202 | Accepted | Asynchronous request submitted successfully.

- Abnormal

  Status Code | Message | Description
  --- | --- | ---
  400 | Bad Request | Invalid request. The client should not repeat the request without modifications.
  401 | Unauthorized | The authorization information provided by the client is incorrect or invalid. Check the username and password.
  403 | Forbidden | The request is rejected. The server has received and understood the request; yet it refused to respond, because the request is set to deny access. Do not retry the request before modification.
  404 | Not Found | The requested resource cannot be found. The client should not repeat the request without modifications.
  405 | Method Not Allowed | The method specified in the request is not supported for the requested resource. The client should not repeat the request without modifications.
  409 | Conflict | The request could not be processed due to a conflict. This status code indicates that the resource that the client attempts to create already exits, or the request fails to be processed because of the update of the conflict request.
  413 | Request Entity Too Large | The request is larger than that a server is able to process. The server may close the connection to prevent the client from continuing the request. If the server temporarily cannot process the request, the response will contain a Retry-After header field.
  415 | Unsupported Media Type | The server is unable to process the media format in the request.
  422 | Unprocessable Entity | The request is well-formed but is unable to be processed due to semantic errors.
  500 | Internal Server Error | The server is able to receive the request but it could not understand the request.
  501 | Not Implemented | The server does not support the requested function.
  503 | Service Unavailable | The requested service is invalid. The client should not repeat the request without modifications.

Parent topic: Appendix