Klarna can be integrated for a Shopify merchant either as:
- a local payment method, for available regions, within Shopify Payments, supported by Shopify
- an alternative payment method, for any available Klarna region, supported by Klarna
For Klarna as an alternative payment method, Klarna has 2 apps available for Shopify merchants:
- Klarna (free, unlisted public app, as Shopify doesn’t allow payments apps to be listed in the Shopify app store) supporting Klarna Payments which allows your customers to pay with Klarna
- Klarna On-site messaging (free, public app in the Shopify app store). Prerequisite: Prior to messaging Klarna on your storefront using the public Klarna On-site messaging app, Shopify merchants should first integrate Klarna within Shopify checkout. (The On-site messaging app for Shopify is not compatible with Klarna as a local payment method within Shopify Payments yet, but this is in progress to be supported soon.)
If you don’t yet have Klarna API credentials, you can sign up at http://klarna.com/business
Once you have received your Klarna API credentials, please follow these steps to activate Klarna in your Shopify store.