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: DescribeInstancesDeniedActions
Version	Yes	No	String	Public parameter, The value of this interface: 2017-03-12
Region	No	No	String	Public parameter,Regional information A list of supported geographies is available through the DescribeRegions interface
InstanceIds	Yes	No	Array of String	Queries by one or more instance IDs. Instance ID format: `ins-61dyt49hxxxx`. For the specific format of this parameter, see the `id.N` section in API Introduction. Each request can involve up to 100 instances. Parameters `InstanceIds` and `Filters` cannot be specified at the same time. Example: ["ins-61dyt49h"]

3. Output Parameters

Parameter name	Type	Description
InstanceDeniedActionSet	Array of InstanceDeniedActions	List of Instance Operation Restrictions Example:View
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
InvalidInstance.NotSupported	Unsupported instance.
InvalidInstanceId.Malformed	Invalid Instance ID. The format of the specified instance ID is incorrect, for example, an instance ID length error `ins-1122`.
InvalidInstanceId.NotFound	No corresponding instance was found.