Technical and Integration
- How do I fix the error message "401 Unauthorised" in the checkout?
- What needs to be done before I can start integrating with Klarna?
- I have logged in to the Merchant Portal to integrate. How does it work?
- What is the username and password that needs to be added to my platform?
- How does the integration work?
- How do I add the Klarna badge to my available payment options?