Test your integration of Klarna Payment methods in playground environment using sample payment data to ensure compliance and a reliable integration.
Payment methods
The following payment methods are available for testing Klarna Payments.
Direct debit
To test the direct debit payment flow from a customer's perspective, use an IBAN-format number. For example, the following sample IBAN number will work for a test store in Germany: DE1152 0513 7351 2071 0131.
In Sweden, use the following sample Personal number: 19770111-6050.
Credit card
To test the card payment flow from a customer's perspective, use the following card details in the loaded Klarna widget:
- Credit card number: 4111 1111 1111 1111
- CVC: 123
- Expiration date: 12/28 or any other future date in MM/YY format
- Card number to trigger a 3-D Secure flow: 4687388888888881
Card payment UI flow
Debit card
To test the card payment flow from a customer's perspective, use the following card details in the loaded Klarna widget:
- Credit card number: 4012 8888 8888 1881
- CVC: 123
- Expiration date: 12/28 or any other future date in MM/YY format
In the US, use the debit card to test Financing. In addition, when prompted for a Social Security Number (SSN), use 123456789
Direct bank transfer
To test a direct bank transfer payment flow from a customer's perspective, look for Demo Bank in the loaded Klarna widget.
Bank transfer payment UI flow