Fortnox error: 502 Bad Gateway

Description

The error occurs when the Integration Platform tries to find an invoice in Fortnox for payment. The message means that the Fortnox API temporarily could not respond correctly to the request. This is a technical error (server error), and the export is stopped.

Cause

• Temporary service issue in Fortnox – a 502 error often indicates that the server cannot handle the request at the moment.

• Network or gateway error between the Integration Platform and Fortnox.

• Too many simultaneous API requests, causing Fortnox to reject the request.

Action

• Try again later

  • Wait a few minutes and try running the export again.

  • 502 errors are often temporary.

• Check Fortnox service status

  • See if there are any known issues or ongoing maintenance in Fortnox.

• Reduce load/requests

  • Ensure that not too many parallel API requests are being sent at the same time from the Integration Platform.

• Re-run the export

  • Once Fortnox is available again, re-run the process to find and pay the invoice.

Summary

The error occurs because the Fortnox API responded with 502 Bad Gateway, which is a temporary server error. The solution is to try again after a short while, check the Fortnox service status, and make sure not too many requests are sent simultaneously. If the issue persists, contact Sharespine support.