CountryCodes
query parameter.
Presenting the supported banks to the user allows them to select their bank and the scheme to use within your checkout experience, rather than on the hosted page after redirection.
Read more in the guide →
Category
and Sku
identifier for line items, which enable more data about the transaction to be passed to Klarna. This enables line items of different types to be distinguished, notably, such as buyer protection or shipping costs.
See the POST Create a Klarna PayIn for details.