# Status Codes

EBP REST API returns the following HTTP Status Codes for all requests.

## Http Status Codes

| HTTP Status Code / Status Message | Description                                                                 | Error Type |
|-----------------------------------|-----------------------------------------------------------------------------|------------|
| 200 OK                            | Request processed successfully                                              | D, E       |
| 404 No Content                    | No data found in the system; occurs when the requested resource is missing | Z          |
| 400 Bad Request                   | Invalid request format or missing/incorrect mandatory parameters           | B, C       |
| 401 Unauthorized                  | Authentication failure during API access                                   | A          |
| 405 Method Not Allowed            | Attempted to call an unsupported HTTP method                               | Z          |
| 500 Internal Server Error         | Unexpected exception occurred on the server                                | Z          |