Wix Klarna Integration  
Please provide: 
You need to have a Business Klarna Account
Klarna API Username and Klarna API Password
If you do not know how to generate API please give us temporary full access to your Klarna Business Account 
Kindly provide us with a Permission Letter authorizing the opening of a finance account on behalf of your business. Please fill in Permission Authorizing Form Link to Permission Authorizing Letter. 
You receive an extra Klarna Banner