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Response codes

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HTTP response reference

HTTP status codes are three-digit numbers that indicate the outcome of a request. In the case of an error response, the status code falls within the range of 4xx or 5xx. By taking into account HTTP code and ID, you can perform exemption or error handling.

The Worldline Connect API uses the following HTTP response codes:

  • 2xx means your request was handled successfully
  • 4xx means that we couldn't process your request either due to the incorrect request or because the transaction doesn't have the correct status for your action
  • 5xx means something went wrong in our system
Code Status message Description
200 Successful Your request was processed correctly.
201 Created Your request was processed correctly, and a new resource was created. The URI of this created resource is returned in the Location header of the response.
400 Bad request Your request is incorrect and can’t be processed. Please correct the mistake and try again.
402 Request Failed It's valid data, but the request got rejected for a certain reason and needs investigation.
403 Not Authorized You’re trying to do something that isn't allowed or that you’re not authorized to do.
404 Not Found The object you were trying to access couldn't be found on the server.
405 Method Not Allowed The action you are attempting to do isn't allowed. For example, trying to refund a payment 90 days after authorization.
410 Gone The object that you are trying to reach has been removed.
500 Internal Server Error Something went wrong on our end.
502 Bad Gateway We were unable to process a message from a downstream partner/acquirer.
503 Service Unavailable The service that you’re trying to reach is temporarily unavailable. Please try again later.
504 Gateway Timeout The server, while acting as a gateway or proxy, didn't receive a timely response from an upstream server it needed to access for completing the request.