Guide
Update the cart
If your customer updates their shopping cart or if you make any changes to payment details, you have to update the payment session before creating an order.
Guide
Native View - iOS
Adding Klarna payments to your application is as easy as adding a view and performing the payment operations on it.
Guide
Prepare your integration in-store
Learn about the prerequisites to enable Klarna Payments in your physical store.
Guide
Prepare your integration web
Ready to offer a smoooth purchase experience to your customers? Here's what you need to know before integrating Klarna payments into your store's website or mobile app.
Guide
Extra merchant data for Kustom Checkout
Learn about all the additional information about your customer you can send.
Guide
Extra merchant data payment
Learn about all the additional information about your customer you can send.
Guide
Multistep checkout
Learn how to offer the optimal purchase experience in a multistep checkout.
Guide
Standalone in-store solution
Start accepting Klarna payments in-store without the need for extra hardware.
Guide
Static QR best practices
Get the most out of your static QR integration.
Guide
How to install Klarna on WooCommerce
This article provides guidelines on installing Klarna in your WooCommerce store.
Guide
Known constraints for Klarna Payments in Shopify
Read about some limitations that can affect your Klarna with Shopify integration.
Guide
Accept a Klarna payment through Adyen
You can choose from multiple integration options to accept a Klarna payment through Adyen. Pick the method best suited to your Adyen integration and contracts.
Guide
Purchase country, locale, and currency
When initiating a payment, you need to define a country, locale, and currency for the payment session. Learn which are the valid values for these parameters and how to map them.
Guide
What is Klarna payments?
Read this article for an introduction to Klarna payments, its place in the Klarna product family, and payment scenarios it supports.