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My API credentials don’t work. What should I do?

If you have an issue with using API credentials you’ve generated, start trouble-shooting here:

Make sure the test mode is disabled
Try copy-pasting credentials again (check there are no typos or extra spaces)
Verify that you’re using the correct integration. We offer two integrations – full checkout replacement, and Klarna as a payment option within your existing checkout solution. Your credentials will only work for the integration you’ve signed up for
Make sure you’re not using

when communicating with our Live environment or the other way around.
Still haven’t solved the issue? Contact our for further help.

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