> For the complete documentation index, see [llms.txt](https://partner-docs.covergenius.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://partner-docs.covergenius.com/offers/api/responses.md).

# Responses

Offers API uses conventional HTTP response codes to indicate the success or failure of API requests. Error codes ranging from 200 to 299 indicate successful operations. Error code 308 indicates that the requested resource has been permanently moved to a different URL. Error codes ranging from 400 to 499 represent various error codes. Errors that can be resolved programmatically will result in an error code that briefly explains the error type and the reason for failure. 5xx codes indicate an unexpected error within the Offers API application. In the unlikely event of a 5xx error, our engineering team will automatically receive a notification and will fix the issue as fast as possible.

| Status                             | Description                                                                                       |
| ---------------------------------- | ------------------------------------------------------------------------------------------------- |
| 200 - OK                           | Everything worked as expected                                                                     |
| 201 - Created                      | The request has been fulfilled and has resulted in one or more new resources being created        |
| 308 - Permanent Redirect           | The requested resource has been permanently moved to a different URL                              |
| 400 - Bad Request                  | The request was not accepted, often due to the wrong format of the request                        |
| 401 - Unauthorized                 | No valid API key was provided                                                                     |
| 404 - Not Found                    | The requested resource doesn't exist                                                              |
| 409 - Conflict                     | The request conflicts with another request, perhaps due to the usage of the same idempotency key  |
| 422 - Unprocessable Entity         | Validation failed or logical error                                                                |
| 429 - Too Many Requests            | Too many requests hit the API too quickly. We recommend an exponential back-off of your requests. |
| 500, 502, 503, 504 - Server Errors | Something went wrong on Offers API side                                                           |


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