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