Status Codes
When you make an API call, the system returns standard HTTP status codes as described in the following table:
| HTTP Status Code | Description |
| 200 OK | The request was completed successfully. |
| 201 Created | The request was completed successfully. Response with empty message body. |
| 204 No Content | The request was completed successfully. Response with empty message body. |
| 304 Not Modified | The requested resource has not been modified since the last time it was loaded. |
| 400 Bad Request | The request could not be processed because it contains missing or incorrect information. See Problem Details for more information. |
| 401 Unauthorized | The request is not authorized. The authentication credentials included with this request are missing or invalid. |
| 403 Forbidden | The user cannot be authenticated. The user does not have authorization to perform this request. |
| 404 Not Found | Requested resource not found. |
| 500 Internal Server Error | Indicates internal error plus the exceptionDetailType JSON object. |
| 503 Service Unavailable | Indicates a service is currently unavailable. |
| 501 Not Implemented | The server does not support the functionality required to fulfill the request. |
| 521 | Service timeout is returned after 60 seconds. |