Klarna docs

# Klarna Documentation

## Platform Solutions

- [Accept a Klarna payment through Adyen](https://docs.klarna.com/platform-solutions/acquiring-partners/adyen/payments/accept-a-klarna-payment-through-adyen.md): 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.
- [Before you start](https://docs.klarna.com/platform-solutions/acquiring-partners/adyen/before-you-start.md): Leverage the Adyen-Klarna partnership to offer seamless payment experiences, with easy onboarding for existing Adyen users and flexible integration options for new businesses.
- [Adyen order management and disputes](https://docs.klarna.com/platform-solutions/acquiring-partners/adyen/payments/order-management-and-disputes.md): In this section, you’ll find the best practices for Adyen and Klarna integration. We recommend you follow the steps below to get the most value from your new payment option.
- [Data handling with Adyen](https://docs.klarna.com/platform-solutions/acquiring-partners/adyen/payments/data-handling.md)
- [Considerations for Conversion boosters with Adyen](https://docs.klarna.com/platform-solutions/acquiring-partners/adyen/conversion-boosters/considerations-for-conversion-boosters.md)
- [Payments with Mollie](https://docs.klarna.com/platform-solutions/acquiring-partners/mollie/payments-with-mollie.md): Mollie is a payment service provider offering payment solutions for businesses of all sizes to sell and grow effectively.
- [Before you start with Stripe](https://docs.klarna.com/platform-solutions/acquiring-partners/stripe/get-started.md): Add Klarna by adjusting the settings in the Stripe Dashboard.
- [Accept a Klarna payment through Stripe](https://docs.klarna.com/platform-solutions/acquiring-partners/stripe/payments/accept-a-klarna-payment-through-stripe.md): You can choose from multiple integration options to accept a Klarna payment through Stripe. Pick the method best suited to your needs and the details of your Stripe integration.
- [Stripe post purchase management](https://docs.klarna.com/platform-solutions/acquiring-partners/stripe/payments/post-purchase-management.md)
- [Data handling with Stripe](https://docs.klarna.com/platform-solutions/acquiring-partners/stripe/payments/data-handling.md)
- [Testing Stripe integration](https://docs.klarna.com/platform-solutions/acquiring-partners/stripe/payments/testing-stripe-integration.md)
- [Considerations for conversion boosters with Stripe](https://docs.klarna.com/platform-solutions/acquiring-partners/stripe/conversion-boosters/considerations-for-conversion-boosters.md)
- [Payments with Worldpay](https://docs.klarna.com/platform-solutions/acquiring-partners/worldpay/payments-with-worldpay.md): Worldpay is a global leader in payment processing solutions, providing a comprehensive range of services to help businesses of all sizes accept payments securely and efficiently.
- [Before you start with Zettle](https://docs.klarna.com/platform-solutions/acquiring-partners/zettle/klarna with zettle.md): Learn how to enable Klarna with Zettle
- [Components of the Klarna extension for Adobe Commerce](https://docs.klarna.com/platform-solutions/e-commerce-platforms/adobe-commerce/before-you-start/extension_components.md): The Klarna extension consists of smaller building blocks called modules. Read this article to learn more about the modules.
- [Install the Klarna extension in Adobe Commerce](https://docs.klarna.com/platform-solutions/e-commerce-platforms/adobe-commerce/payments/installation.md): Learn how to install the Klarna extension from the Adobe Commerce Marketplace.
- [Payments with Optimizely](https://docs.klarna.com/platform-solutions/e-commerce-platforms/optimizely/payments-with-optimizely.md): Optimizely offers a digital experience platform for content creation, e-commerce, and digital marketing all in one place.
- [Klarna Payments for Shopify](https://docs.klarna.com/platform-solutions/e-commerce-platforms/shopify/payments/payments-for-shopify.md): Integrate Klarna Payments into your Shopify store using the Klarna Payments app to offer region-specific payment options with a single Merchant ID and supported currencies.
- [Klarna On-site Messaging App for Shopify](https://docs.klarna.com/platform-solutions/e-commerce-platforms/shopify/conversion-boosters/klarna-osm-app-for-shopify.md): Learn how to display Klarna’s On-site messaging in your Shopify store.
- [Payments with Shopware](https://docs.klarna.com/platform-solutions/e-commerce-platforms/shopware/payments-with-shopware.md): Shopware is a comprehensive ecommerce solutions that enables maximum flexibility, full scalability, and expert support every step of the way.
- [Enable On Site Messaging via Vtex](https://docs.klarna.com/platform-solutions/e-commerce-platforms/vtex/conversion-boosters/enable-on-site-messaging.md): Klarna’s '''On-site messaging''' enhances customer engagement and boosts conversions by displaying Klarna’s flexible payment options throughout the shopping experience. This section provides step-by-step guidance on installing, configuring, and optimizing Klarna On-site messaging in VTEX.
- [Before you start](https://docs.klarna.com/platform-solutions/e-commerce-platforms/wix/before-you-start.md): Read this article for an introduction to using Klarna in your Wix store.
- [Wix FAQ](https://docs.klarna.com/platform-solutions/e-commerce-platforms/wix/payments/frequently-asked-questions.md): Find answers to frequently asked questions related to the Klarna integration with Wix.
- [How to install On-site messaging on Wix](https://docs.klarna.com/platform-solutions/e-commerce-platforms/wix/conversion-boosters/how-to-install-on-site-messaging-on-wix.md): This article provides a step-by-step guide on installing Klarna On-site messaging in your Wix store.
- [How to use Order management on WooCommerce](https://docs.klarna.com/platform-solutions/e-commerce-platforms/woocommerce/payments/how-to-use-order-management-on-woocommerce.md): This article provides guidelines on installing Order management in your WooCommerce store.
- [Payments with Billie](https://docs.klarna.com/platform-solutions/issuing-partners/billie/payments-with-billie.md): You can integrate Billie with Klarna if you’re using Klarna payments.
- [Troubleshooting Klarna Payments for Shopify](https://docs.klarna.com/platform-solutions/e-commerce-platforms/shopify/payments/payments-for-shopify/troubleshoot-your-installation.md): In this section you can read about some common Klarna payments with Shopify integration errors and learn how to fix them in your store. You will also read about some limitations that can affect your Klarna with Shopify integration.
- [Before you start with Adobe Commerce Cloud](https://docs.klarna.com/platform-solutions/e-commerce-platforms/adobe-commerce/before-you-start.md): Learn how to integrate Klarna with Adobe Commerce
- [Settings used by Klarna on Adobe Commerce](https://docs.klarna.com/platform-solutions/e-commerce-platforms/adobe-commerce/payments/general-settings.md): Learn which settings available in Adobe Commerce settings are used by the Klarna extension.
- [Klarna payments -Adobe Commerce](https://docs.klarna.com/platform-solutions/e-commerce-platforms/adobe-commerce/payments/kp-overview.md): Learn about the features offered by Klarna payments in the Klarna Adobe Commerce extension.
- [Adobe Commerce order management](https://docs.klarna.com/platform-solutions/e-commerce-platforms/adobe-commerce/payments/order-management.md): Read about managing orders in the Adobe Commerce Klarna extension.
- [Klarna checkout in Adobe Commerce](https://docs.klarna.com/platform-solutions/e-commerce-platforms/adobe-commerce/payments/klarna-checkout.md): Learn about configuration options available for the Klarna checkout module.
- [Adobe Commerce troubleshooting](https://docs.klarna.com/platform-solutions/e-commerce-platforms/adobe-commerce/payments/troubleshooting.md): Troubleshoot Klarna integration in Adobe Commerce by verifying plugin versions, configuration settings, and resolving compatibility issues to ensure smooth and reliable payment functionality.
- [How to enable Sign in with Klarna in WooCommerce](https://docs.klarna.com/platform-solutions/e-commerce-platforms/woocommerce/conversion-boosters/how-to-enable-sign-in-with-klarna-in-woocommerce.md): This guide explains how to add Sign in with Klarna to your WooCommerce store.
- [How to install Express Checkout in WooCommerce](https://docs.klarna.com/platform-solutions/e-commerce-platforms/woocommerce/conversion-boosters/how-to-install-express-checkout-in-woocommerce.md): This guide explains how to add Express Checkout to your WooCommerce store.
- [How to install On-site messaging on WooCommerce](https://docs.klarna.com/platform-solutions/e-commerce-platforms/woocommerce/conversion-boosters/how-to-install-on-site-messaging-on-woocommerce.md): This article provides guidelines on installing and configuring On-site messaging in your WooCommerce store.
- [How to install Klarna on WooCommerce](https://docs.klarna.com/platform-solutions/e-commerce-platforms/woocommerce/payments/how-to-install-klarna-on-woocommerce.md): This article provides guidelines on installing Klarna in your WooCommerce store.
- [How to enable Klarna in WooPayments](https://docs.klarna.com/platform-solutions/e-commerce-platforms/woocommerce/payments/woopayments/how-to-enable-klarna-for-woopayments.md): This article provides guidelines on enabling Klarna in WooPayments.
- [Before you start with Woocommerce](https://docs.klarna.com/platform-solutions/e-commerce-platforms/woocommerce/before-you-start.md): Read this article for an introduction on the different solutions to use Klarna in your Woo store.
- [Installing Klarna payments in Wix](https://docs.klarna.com/platform-solutions/e-commerce-platforms/wix/payments/installing-klarna-payments-on-wix.md): This article provides a step-by-step guide on installing Klarna payments in your Wix store.
- [Changelog Salesforce](https://docs.klarna.com/platform-solutions/e-commerce-platforms/salesforce-commerce-cloud/before-you-start/changelog.md): List of changes to the Klarna cartridge for Salesforce Commerce Cloud releases.
- [Enable Klarna Payment via Vtex](https://docs.klarna.com/platform-solutions/e-commerce-platforms/vtex/payments/enable-klarna-payment-methods.md): This section covers the installation, configuration, and management of the Klarna Payments App in VTEX. It includes step-by-step instructions for setting up Klarna as a payment provider, handling orders, and moving to production.
- [Managing Klarna orders with Vtex](https://docs.klarna.com/platform-solutions/e-commerce-platforms/vtex/payments/managing-klarna-orders.md): This section explains how to capture payments, process refunds, cancel transactions, and release uncaptured amounts for Klarna orders through the VTEX back office.
- [On-site messaging for Adobe Commerce](https://docs.klarna.com/platform-solutions/e-commerce-platforms/adobe-commerce/conversion-boosters/on-site-messaging.md): With On-site messaging, banners inform your customers which payment and financing options are available before they reach the checkout page.
- [Express Checkout in Adobe Commerce](https://docs.klarna.com/platform-solutions/e-commerce-platforms/adobe-commerce/conversion-boosters/express-checkout.md): This guide explains how to add Express checkout to your Adobe Commerce store.
- [Sign in with Klarna on Adobe Commerce](https://docs.klarna.com/platform-solutions/e-commerce-platforms/adobe-commerce/conversion-boosters/sign-in-with-klarna.md): This guide explains how to add Sign in with Klarna to your Adobe Commerce store.
- [Before you start with Prestashop](https://docs.klarna.com/platform-solutions/e-commerce-platforms/prestashop/before-you-start.md): Get Klarna up and running in your PrestaShop store.
- [Klarna Payments in PrestaShop](https://docs.klarna.com/platform-solutions/e-commerce-platforms/prestashop/payments/klarna-payments-in-prestashop.md): The Klarna Payments module for PrestaShop allows seamless integration of Klarna’s payment solutions into your store.
- [Order Management in Prestashop](https://docs.klarna.com/platform-solutions/e-commerce-platforms/prestashop/payments/order-management-in-prestashop.md): Order Management on PrestaShop outlines how Klarna orders are handled within the admin panel, including automated or manual capture, refund processing for captured orders, and integration features like partial actions, shipment tracking, and status synchronization to streamline operations.
- [Configuring On-site messaging in Prestashop](https://docs.klarna.com/platform-solutions/e-commerce-platforms/prestashop/conversion-boosters/configuring-on-site-messaging.md)
- [How to enable Express checkout in PrestaShop](https://docs.klarna.com/platform-solutions/e-commerce-platforms/prestashop/conversion-boosters/how-to-enable-express-checkout-in-prestashop.md): This guide explains how to add Express Checkout to your PrestaShop store.
- [How to enable Sign in with Klarna in PrestaShop](https://docs.klarna.com/platform-solutions/e-commerce-platforms/prestashop/conversion-boosters/how-to-enable-sign-in-with-klarna-in-prestashop.md): This guide explains how to add Sign in with Klarna to your PrestaShop store.
- [User guide for Salesforce Commerce Cloud](https://docs.klarna.com/platform-solutions/e-commerce-platforms/salesforce-commerce-cloud/before-you-start/user-guide.md)
- [Salesforce operations and maintenance](https://docs.klarna.com/platform-solutions/e-commerce-platforms/salesforce-commerce-cloud/before-you-start/operations-and-maintenance.md)
- [Installing the cartridge on SFRA stores](https://docs.klarna.com/platform-solutions/e-commerce-platforms/salesforce-commerce-cloud/cartridge-installation/installing-on-sfra.md): This guide provides detailed instructions to install the cartridge on Salesforce Commerce Cloud (SFCC) SFRA stores.
- [Klarna Payments on Salesforce Commerce Cloud](https://docs.klarna.com/platform-solutions/e-commerce-platforms/salesforce-commerce-cloud/payments.md): Klarna Payments enables merchants to integrate flexible payment options like Pay Now, Pay Later, and Financing. It supports easy configuration through the Business Manager, enhancing the checkout experience and boosting conversion rates. Advanced features include virtual card settlements and streamlined fraud management for secure and efficient transactions.
- [Use Cases on Salesforce Commerce Cloud](https://docs.klarna.com/platform-solutions/e-commerce-platforms/salesforce-commerce-cloud/payments/use-cases.md)
- [Advanced Features in Salesforce Commerce Cloud](https://docs.klarna.com/platform-solutions/e-commerce-platforms/salesforce-commerce-cloud/payments/advanced-features.md): This section introduces Klarna’s ability to apply payment method-based promotions, allowing you to configure product, order, and shipping discounts based on payment choices. It also explains how Klarna’s API handles price adjustments and taxation, offers details on “Buy Online, Pickup In Store” (BOPIS) integration, and discusses subscription product configurations, including recurring order handling.
- [On-site messaging in Salesforce Commerce Cloud](https://docs.klarna.com/platform-solutions/e-commerce-platforms/salesforce-commerce-cloud/conversion-boosters/on-site-messaging.md): On-site messaging is a platform that enables you to add tailored messaging to your website. With on-site messaging, you can inform shoppers about the different payment options available as they browse your site. By using Klarna, customers have access to flexible payment options in the checkout; on-site messaging is a great way to let them know even before they decide to buy.
- [Express Checkout in Salesforce Commerce Cloud](https://docs.klarna.com/platform-solutions/e-commerce-platforms/salesforce-commerce-cloud/conversion-boosters/express-checkout.md): 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.
- [Sign in with Klarna on Salesforce Commerce Cloud](https://docs.klarna.com/platform-solutions/e-commerce-platforms/salesforce-commerce-cloud/conversion-boosters/sign-in-with-klarna.md): In this section we summarize how to integrate and configure the SIWK button on login and checkout pages. It covers key setup steps, including where to place the button, customizing its appearance, and configuring redirect URLs.
- [Salesforce order management](https://docs.klarna.com/platform-solutions/e-commerce-platforms/salesforce-commerce-cloud/order-management.md): This guide explains how to install and configure the Klarna Order Management (OMS) app for Salesforce Order Management (SFOMS). Merchants can access required adapters and code directly from the Klarna GitHub repository, where the open-source code is available for deployment into the SFOMS environment like any other customization.
- [Before you start with Shopify](https://docs.klarna.com/platform-solutions/e-commerce-platforms/shopify/before-you-start.md): Integrate Klarna with your Shopify store by adding Klarna Payments and on-site messaging to boost visibility, enhance flexibility, and improve the overall customer experience.
- [Installing Klarna Payments for Shopify](https://docs.klarna.com/platform-solutions/e-commerce-platforms/shopify/payments/payments-for-shopify/how-to-install-klarna-payments-on-shopify.md): Successfully integrate Klarna Payments with your Shopify store by following the step-by-step installation guide, verifying store setup, and ensuring required customer details for smooth transactions.
- [Testing Klarna Payments for Shopify](https://docs.klarna.com/platform-solutions/e-commerce-platforms/shopify/payments/payments-for-shopify/testing-the-integration.md): Test Klarna Payments safely on your Shopify store using Test mode to validate integration without real transactions, and remember to disable it before going live.
- [Additional features](https://docs.klarna.com/platform-solutions/e-commerce-platforms/shopify/payments/payments-for-shopify/additional-features.md): Customize Klarna integration in Shopify and Shopify Plus by aligning order data fields and using Shopify Functions for tailored payment method experiences.
- [In-store & Draft orders](https://docs.klarna.com/platform-solutions/e-commerce-platforms/shopify/payments/payments-for-shopify/shopify-draft-orders-and-the-klarna-in-store-orders.md): Enable Klarna payments for in-store purchases by creating Shopify draft orders and sending customers an invoice to complete payment through the online checkout.
- [Shopify order management](https://docs.klarna.com/platform-solutions/e-commerce-platforms/shopify/payments/payments-for-shopify/order-management.md): This article details the order operations you can manage in the Klarna payments app integration for Shopify.
- [How to install the Shopify On-site messaging app](https://docs.klarna.com/platform-solutions/e-commerce-platforms/shopify/conversion-boosters/klarna-osm-app-for-shopify/how-to-install-osm-shopify-app.md): Read this guide to learn how to add the Klarna On-site messaging Shopify app to your Shopify store.
- [App Block placements](https://docs.klarna.com/platform-solutions/e-commerce-platforms/shopify/conversion-boosters/klarna-osm-app-for-shopify/app-block-placements.md): Display Klarna On-Site Messaging on your Shopify store by installing the app and customizing dynamic or static placements across key pages for a tailored shopping experience.
- [Vintage Ad placements](https://docs.klarna.com/platform-solutions/e-commerce-platforms/shopify/conversion-boosters/klarna-osm-app-for-shopify/vintage-ad-placements.md): How to add On-Site Messaging on your vintage theme on Shopify.
- [Klarna On-site Messaging App: FAQ](https://docs.klarna.com/platform-solutions/e-commerce-platforms/shopify/conversion-boosters/klarna-osm-app-for-shopify/frequently-asked-questions.md): Get answers to common questions about Klarna’s On-site Messaging App for Shopify, including integration, localization, and customization to match your store’s branding.
- [Klarna On-Site Messaging App: Troubleshooting](https://docs.klarna.com/platform-solutions/e-commerce-platforms/shopify/conversion-boosters/klarna-osm-app-for-shopify/troubleshooting.md): In this section you can read about some common issues with the Klarna On-site messaging Shopify app and learn how to fix them in your store.
- [Installing the cartridge on SiteGenesis Stores](https://docs.klarna.com/platform-solutions/e-commerce-platforms/salesforce-commerce-cloud/cartridge-installation/installing-on-sitegenesis.md): This guide provides detailed instructions to install the cartridge on Salesforce Commerce Cloud (SFCC) SiteGenesis stores.
- [Before you start with Salesforce Commerce Cloud](https://docs.klarna.com/platform-solutions/e-commerce-platforms/salesforce-commerce-cloud/before-you-start.md): This article will outline how to enable Klarna on Salesforce Commerce Cloud storefront.
- [Before you start with Vtex](https://docs.klarna.com/platform-solutions/e-commerce-platforms/vtex/before-you-start.md): This section provides an overview of Klarna’s VTEX apps, their benefits and installation requirements, and troubleshooting steps.
- [Before you start with SAP Commerce Cloud](https://docs.klarna.com/platform-solutions/e-commerce-platforms/sap-commerce-cloud/before-you-start.md): This document serves as a comprehensive technical guide for installing Klarna extensions on the SAP Commerce platform. It provides detailed instructions for integrating Klarna Payments, Klarna On-Site Messaging, Klarna Express Checkout, and Sign in with Klarna. Topics include supported environments, restrictions, tested configurations, and data migration options, ensuring a smooth setup process for SAP Commerce specialists.
- [Changelog of SAP Commerce Cloud Add-on](https://docs.klarna.com/platform-solutions/e-commerce-platforms/sap-commerce-cloud/before-you-start/changelog.md): List of changes to the Klarna add-on for SAP Commerce Cloud.
- [Use Cases on SAP Commerce Cloud](https://docs.klarna.com/platform-solutions/e-commerce-platforms/sap-commerce-cloud/payments/use-cases.md): This section outlines the capabilities of Klarna Payments, covering pre-purchase messaging, flexible order placement, efficient order management, and secure settlement options like Virtual Card Numbers, enhancing both customer experience and operational workflows.
- [Installation of SAP Commerce Cloud Add-on](https://docs.klarna.com/platform-solutions/e-commerce-platforms/sap-commerce-cloud/payments/installation.md): This guide will help you install Klarna add-ons for SAP Commerce Suite to enable Klarna payment solutions. Follow the steps outlined below to ensure a successful installation.
- [Activation of SAP Commerce Cloud Add-on](https://docs.klarna.com/platform-solutions/e-commerce-platforms/sap-commerce-cloud/payments/activation.md): This guide helps you activate Klarna Payments by setting up configurations and credentials in the SAP Commerce Backoffice.
- [On-Site Messaging on SAP Commerce Cloud](https://docs.klarna.com/platform-solutions/e-commerce-platforms/sap-commerce-cloud/conversion-boosters/on-site-messaging.md): This guide provides step-by-step instructions to install and configure the Klarna On-Site Messaging (KOSM) add-on for SAP Commerce.
- [Express Checkout on SAP Commerce Cloud](https://docs.klarna.com/platform-solutions/e-commerce-platforms/sap-commerce-cloud/conversion-boosters/express-checkout.md): This guide provides step-by-step instructions to install and configure the Klarna On-Site Messaging (KOSM) add-on for SAP Commerce.
- [Sign in with Klarna on SAP Commerce Cloud](https://docs.klarna.com/platform-solutions/e-commerce-platforms/sap-commerce-cloud/conversion-boosters/sign-in-with-klarna.md): The ''Sign in with Klarna'' feature is included in the '''Klarna Add-on''', so no separate installation is necessary. However, a clean build of the package and an update of the database schema are required to generate new data models and data transfer objects (DTOs).
- [Extended Access features in the Klarna On-site messaging Shopify app](https://docs.klarna.com/platform-solutions/e-commerce-platforms/shopify/conversion-boosters/extended-access-in-osm-app.md): This article explains how you can grant additional access to the Klarna On-site messaging Shopify app in order to benefit from some features not available in the app by default.
- [Search and Compare App for Shopify](https://docs.klarna.com/platform-solutions/e-commerce-platforms/shopify/more-services/search-and-compare-app.md): Boost product visibility on the Klarna app and web by installing the Search and Compare App for Shopify, managing your feed status, and optimizing product data for better matching.
- [Uninstall Klarna from Shopify](https://docs.klarna.com/platform-solutions/e-commerce-platforms/shopify/payments/uninstall-klarna-from-shopify.md): You can remove the Klarna payment method in Shopify store settings.
- [Uninstall the Klarna On-site messaging Shopify app](https://docs.klarna.com/platform-solutions/e-commerce-platforms/shopify/conversion-boosters/uninstall-osm-shopify-app.md): This article outlines how you can remove the Klarna On-site messaging Shopify app from your store.
- [Multi-currency payments](https://docs.klarna.com/platform-solutions/e-commerce-platforms/shopify/payments/multi-currency-payments.md): This article explains the behavior and limitations of multicurrency payments using Klarna in the Shopify store.
- [Customize placements](https://docs.klarna.com/platform-solutions/e-commerce-platforms/shopify/conversion-boosters/customize-placements.md): This article outlines how you can customize the Klarna On-site messaging placements to better fit your store’s look and feel.
- [Express button](https://docs.klarna.com/platform-solutions/e-commerce-platforms/adobe-commerce/conversion-boosters/klarna-express-button.md): Express button gives shoppers a fast and convenient way to buy with Klarna.
- [How to handle customer data](https://docs.klarna.com/platform-solutions/e-commerce-platforms/shopify/payments/how-to-handle-customer-data.md): This article provides guidance on handling customer data in the Shopify Checkout. It explains which are the required fields to prevent errors with Klarna payments.
- [Known constraints for Klarna Payments in Shopify](https://docs.klarna.com/platform-solutions/e-commerce-platforms/shopify/payments/known-constraints.md): Read about some limitations that can affect your Klarna with Shopify integration.
- [Known constraints for On-site Messaging in Shopify](https://docs.klarna.com/platform-solutions/e-commerce-platforms/shopify/conversion-boosters/known-constraints.md): Read about some limitations that can affect the Klarna On-site messaging in your Shopify store.
- [Language, locale, and translations](https://docs.klarna.com/platform-solutions/e-commerce-platforms/shopify/payments/language-locale-and-translations.md): This article explains how language, locale, and translations work for the Klarna payment method in Shopify.
- [Manual On-site messaging](https://docs.klarna.com/platform-solutions/e-commerce-platforms/shopify/conversion-boosters/manual-osm-shopify-integration.md): This guide covers the manual integration of Klarna On-site messaging with a Shopify store when the app isn’t compatible with your store.