Log in with the information that Klarna sent to the email address you specified in your agreement here .
https://merchants.klarna.com & nbsp;
Click the menu button in the upper left corner (where it says "Hem" (Home)).
Go to "Inställningar" (Settings).
You can generate new API keys by clicking "Generera nya inloggningsuppgifter för API" (Generate New API Keys). Remember to save the API keys somewhere safe, as you can only see them once.
Choose "Download as text" (.txt)
and send 'Username' and 'Password' to us here via our customer portal.
They should be pasted under Klarna as shown below, but for security reasons, only we can do it.