Responses that are sent from the REST API use the following codes. If queries fail, an explanatory error message is displayed.
| Response codes | Description | 
|---|---|
| 200 | Query successful. | 
| 204 | Query successful. Response has no content. | 
| 401 | Access not authorized. The session must be authorized first. | 
| 404 | The given resource could not be found. | 
| 405 | The HTTP method used is not allowed for this query. | 
| 500 | A server error occurred. The error message is sent with the response. On the ground of security, a detailed error message is not included in the response. For more information, see the application log file on the server. | 
