Receiving payments in pounds, yen, dollars or euros and letting your customers pay in the currency they are used to. That, in a nutshell, is what multi-currency transactions are all about.
You provide our API with a currency code on your webshop. The payment will then be displayed on the payment screen in the same currency you offer on your webshop. We retrieve the exchange rates of all used currencies daily, so we always have the correct data.