API and SDKsSupport
Guide
On-site messaging JavaScript library
The JavaScript library delivers the core functionality of On-site messaging.
Conversion boosters
Live
Guide
Klarna On-site Messaging App for Shopify
Learn how to display Klarna’s On-site messaging in your Shopify store.
Shopify
Conversion boosters
Guide
How to install On-site messaging on Wix
This article provides a step-by-step guide on installing Klarna On-site messaging in your Wix store.
Wix
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Guide
Testing and integration checklist for Sign in with Klarna
Before you go live with Sign in with Klarna solution, follow this checklist to make sure your integration is tested and ready to be enabled in production.
Conversion boosters
Testing tools
Guide
Klarna deals promotions
Incentivize Klarna shoppers and boost conversion with an auto-applied deal on your site that is seamless to use.
Payments
Live
Conversion boosters
Media & Marketing
Guide
On-site messaging for mobile
Native support for this feature is as easy as it gets by an actual native view supporting both iOS and Android.
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Mobile
Guide
How to enable Sign in with Klarna in PrestaShop
This guide explains how to add Sign in with Klarna to your PrestaShop store.
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Prestashop
Guide
On-site messaging API integration
This document describes the integration steps needed to make use of the Klarna On-site messaging API.
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Guide
Sign in with Klarna - React Native
Add Sign in with Klarna to your React Native app by integrating the Klarna In-App SDK, configuring native dependencies, and securely managing the sign-in flow and user data scopes.
Mobile
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Guide
Sign in with Klarna - iOS
In this step-by-step guide you will learn how to integrate Sign in with Klarna into your iOS app.
Mobile
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iOS
Guide
Integrate one-step Express checkout
Learn how to integrate the one-step Express checkout for a fast and simple shopping journey.
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Live
Guide
On-site messaging Placements
Here you can find technical details about the placements of the messaging assets.
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Live
Guide
How to install On-site messaging on WooCommerce
This article provides guidelines on installing and configuring On-site messaging in your WooCommerce store.
WooCommerce
Conversion boosters
Guide
Express Checkout in Salesforce Commerce Cloud
Klarna Express checkout (KEC) is a new feature introduced in Storefront that displays an Express Checkout Button on the Product Detail Page (PDP), Cart, and Mini Cart. Users are redirected to Klarna upon clicking the Express Checkout button.
Salesforce Commerce Cloud
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Guide
Klarna On-site Messaging App: Installation
Read this guide to learn how to add the Klarna On-site messaging Shopify app to your Shopify store.
Shopify
Conversion boosters