How can I test the Klarna integration?

Use the Merchant Portal

to test and simulate the integration of Klarna in your checkout.

Sign up for Merchant Portal Playground to get started:

  1. Go to

    and tap Log in 

  2. Select Region and choose the Playground environment

  3. Tap Sign Up and enter your email 

  4. Activate your account by the email link and agree to the T&Cs.

Access the Merchant Portal Playground:

  • Once registered, log in via

    to the . A Test Merchant ID (MID) in the format PKXXXX will be automatically assigned to you.

Testing environment:

  • The Merchant Portal Playground allows you to test Klarna's products before integrating to your live store.

  • You can simulate transactions and test various scenarios to ensure the integration works as expected.

Troubleshooting:

  • If you encounter issues, use Merchant Portal Staging with the Test MIDs assigned to PO for additional support.

Good to know: You don’t need to have a live account with Klarna to sign up for a playground environment. Playground environments are not available for every region. 

Are you a Shopify retailer? 

Test integrations for Shopify are limited to select retailers. Contact our

to determine your eligibility.

Contact Merchant support

Do you want to start selling with Klarna?

Already a Klarna merchant?

✓ Sign in to the Merchant Portal to take control of your orders, payouts, bank details, disputes, and more.

✓ Chat with Merchant support for expert help.

Opening hours may vary by region and are shown based on your location.