I have Asked it to Klarna.
For now, I think it is the currencies of the supported merchant countries.
- Austria => EUR
- Denmark => DKK
- Finland => EUR
- Germany => EUR
- Netherlands => EUR
- Norway => NOK
- Sweden => SEK
- United Kingdom => GBP
- United States => USD
After 5 days, I have got a response from Klarna support:
In the older platform, it is only the local currencies for the respective checkout.
So SEK in Sweden, EUR in FI/DE/AT, NOK in Norway.
On the new platform we support:
- US Dollar (USD)
- Euro (EUR)
- British Pound (GBP)
- Swiss Franc (CHF)
- Australian Dollar (AUD)
- Canadian Dollar (CAD)
- Swedish Krona (SEK)
- Norwegian Krone (NOK)
- Danish Krone (DKK)