This is how you can connect Storeshop and Klarna.
Click on this link to create a Klarna account: https://www.klarna.com/no/bedrift/
When you get to "What platform are you on?", select "Other integration solutions".
Then you select "Own built integration". Then you choose "Klarna checkout".
Now that you have made a Klarna account, or you already have one:
Go to settings --> "Klarna API Credentials".
Click "Generate new Klarna API credentials".
Copy the username and password, and go to your Storeshop control panel.
In Storeshop, go to Settings --> General.
Click on "Activate B2C Webshop". Enter your username and password, and press "test connection".