KlarnaKlarna for businessMerchant SupportIntegrationIntegrating KlarnaIntegrating KlarnaIntegrating KlarnaWhen can I start integrating Klarna? | How does the integration process work? | How do I integrate Klarna? | The integration is not working. What should I do? | What is the username and password I need to add in my platform? | Why am I sent back to the shopping cart when I try to complete the purchase in the checkout?When can I start integrating Klarna?How does the integration process work?How do I integrate Klarna?The integration is not working. What should I do?What is the username and password I need to add in my platform?Why am I sent back to the shopping cart when I try to complete the purchase in the checkout?