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GuideHow to integrate Klarna PaymentsThe end-to-end process to make a payment with Klarna involves three main steps.
GuideStep 1: Initiate a paymentThis section of the guide walks you through initiating a payment and letting your customers pay with Klarna.
GuideCancel an authorizationUse the Klarna payments API to cancel an authorization and remove any customer debts gotten during the payment session.
GuidePrepare your integration webReady 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.
GuideDiscounts with Klarna PaymentsMost common discount types can be deducted through Klarna payments. Find all information below on vouchers, codes, gift cards and loyalty clubs, including integration and VAT handling.
GuideManaging Klarna orders with VtexThis section explains how to capture payments, process refunds, cancel transactions, and release uncaptured amounts for Klarna orders through the VTEX back office.
GuideCustomize placements through Merchant portalIf you're not familiar with CSS or don't have access to your website's source code, use Klarna's Merchant portal to customize placements to better suit your website's design.
GuideMore featuresCustomize Klarna integration in Shopify and Shopify Plus by aligning order data fields and using Shopify Functions for tailored payment method experiences.
Learn how to customize your payment methods in Shopify Plus.
GuideKlarna for Shopify PaymentsOffer flexible Klarna Payment options like installments and pay later through Shopify Payments, enhancing your checkout experience in supported regions with easy integration.
GuideIntroduction to Mobile IntegrationsLearn the recommended method for integrating Klarna’s Mobile SDK to enable a secure and seamless checkout with full feature support. Understand how to use System Webviews as an alternative and why Embedded/Custom WebViews are not allowed.
GuidePurchase country, locale, and currencyWhen 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.
GuideUpdate the cartIf 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.
GuideShipping feesTransparency in costs, including shipping, is key to maintaining trust with your customers and ensuring compliance with Klarna's guidelines.
All Documentation