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How do I fix the error message ‘401 Unauthorized’ in the checkout?

Check the following:

  • If you use Klarna API credentials for production, make sure that the test mode is switched off
  • If you use Klarna API credentials for our test environment, make sure that the test mode is switched on

 

Still haven’t solved the issue? Contact our Merchant support for further help.

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Monthly financing through Klarna is issued by WebBank, member FDIC. Copyright © 2005-2022 Klarna Inc. NMLS #1353190, 629 N. High Street, Third Floor, Columbus, OH 43215. Other CA resident loans made or arranged pursuant to a California Finance Lenders Law license.