Test your integration

To test your integration, you can use our Playground Environments:

Test vs. live environments

Please use the test environment to test your Klarna Checkout integration. Purchases completed in the test environment are not processed by our production system and will not result in proper invoices or any fees collected on invoices.

Purchases and Order management

  • The API URLs / end-points for our playground environment are found here

Merchant Portal

You can log in to our Merchant Portal in playground to look at logs from your API calls, manage orders and more. Contact our tech sales in order to get a user account.

In Playground, you need a test account, and you can trigger different use cases to see some of the scenarios the consumer will experience.

Get your test-credentials

Go-live checklist

Below you can find a list of tasks you need to complete in order to go live with Klarna Checkout. Completing these tasks will help you pass Klarna’s verification of your integration faster and start accepting live transactions sooner:

  1. Have you rendered the checkout correctly?
  2. Is your terms and conditions page linked correctly?
  3. Do you save the customer session ?
  4. Is the confirmation page rendered correctly?
  5. Does your platform acknowledge and create the order?
  6. Do you present sufficient information about your store and how consumers can contact you?
  7. Do you pre-fill the checkout for consumers who are logged in?
  8. Have you captured the order to finalize the payment?
  9. Have you reviewed the security of your site? Our security recommendations are a great place to start.
  10. Have you gone through the best practices documentation to ensure a smoooth checkout integration?

Note: In order to finalize your integration with Klarna and go live, you need to have an agreement in place assigning you with production credentials. Visit Klarna’s website to start the onboarding:

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This section only applies to the regions:
Germany, Austria
Please ensure you've reviewed Legal & Privacy information.
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Customize your checkout

Now that you’re done with the integration of Klarna Checkout, see our list of additional features for a custom experience that suits your store’s needs.

We allow you to configure the Klarna Checkout to fuse with your e-store’s visual design and buying experience.