The following list of request parameters only lists interface request parameters and some public parameters, For a complete list of public parameters see public request parameters.

Parameter name	Required	Allow NULL	Type	Description
Action	Yes	No	String	Public parameter, The value of this interface: ModifyCertAlias
Version	Yes	No	String	Public parameter, The value of this interface: 2018-03-17
Region	No	No	String	Public parameter,Regional information A list of supported geographies is available through the DescribeRegions interface
CertId	Yes	No	String	Certificate ID Example: GpW7fKkH
Alias	Yes	No	String	New remarks of the certificate Example: cert-2

3. Output Parameters

Parameter name	Type	Description
RequestId	String	Unique request id, Each request will return. The RequestId of the request needs to be provided when locating the problem.

4. Error Code

The following lists only the error codes related to the interface business logic, For other error codes, see public ErrorCode.

Error Code	Description
UnauthorizedOperation	Unauthorized operation
FailedOperation	Failed to operate.
InternalError	Internal Error
InvalidParameter	Wrong parameter.
InvalidParameterValue.Length	Invalid parameter length.