Error code table - API Reference (Old)| Alibaba Cloud Documentation Center

Client errors

Error code	Description	HTTP status code	Semantics
MissingParameter	The input parameter “parameter name” that is mandatory for processing this request is not supplied	400	The parameter is missing.
InvalidParameter	The specified value of parameter “parameter name” is not valid.	400	The parameter value is invalid.
UnsupportedOperation	The specified action is not supported.	400	The interface is invalid.
NoSuchVersion	The specified version does not exist.	400	The version is invalid.
Throttling	Request was denied due to request throttling.	400	The operation is rejected by the traffic control system.
InvalidAccessKeyId.NotFound	The Access Key ID provided does not exist in our records.	400	The AccessKey is invalid.
Forbidden	User not authorized to operate on the specified resource.	403	The operation is not permitted.
Forbidden.RiskControl	This operation is forbidden by Aliyun Risk Control system.	403	The operation is forbidden by the risk control system.
SignatureDoesNotMatch	The signature we calculated does not match the one you provided. Please refer to the API reference about authentication for details.	403	The signature is invalid.
Forbidden.UserVerification	Your user account is not verified by Aliyun.	403	Real-name verification is missing.

Error code	Description	HTTP status code	Semantics
InternalError	The request processing has failed due to some unknown error, exception or failure.	500	The server cannot process the request.
ServiceUnavailable	The request has failed due to a temporary failure of the server.	503	The server cannot process the request currently.