Klarna Checkout is a complete online checkout solution designed to increase sales and customer loyalty. Klarna as your single payment provider keeps everything under one roof. You’ll have one agreement, one point of contact, one settlement file, one payout with Klarna Checkout.
Klarna Payments are standalone payment methods. With Klarna Payments you can complement your checkout with a Klarna widget located in your existing checkout
Based on the solution selected, the respective contract must be agreed and approved. Signing up for a Klarna Checkout account with Klarna, you should use the Klarna Official Checkout module, if you signed up for the Klarna Payments contract, then you should use the Klarna Payments module.
The Klarna API credentials for testing can be generated by following the steps here.
The production/live Klarna API credentials are different and require a contract with Klarna. This can be initiated via the on-boarding flow when registering your business/shop for transacting with Klarna, and are found in the Settings app in the Klarna Merchant Portal. Please choose the right market first.
You can also upload the .zip-file to your modules/ catalog via FTP and locate the module by searching for "klarnaofficial" in the Modules tab. Download the module version appropriate for your shop (v1.7.1+ or v1.6.1.+)