For cashless pay units like Swish, Blik etc. the property hubPaymentMethod is used to specify the type of payment. This information will be sent together with other payment details when reporting the transaction to the HUB.
<PAYUNIT hubPaymentMethod="sp:SwishMobilePaymentMethod">
Following payment methods are available:
sp:Coin, sp:Bill, sp:ContactLessCreditCard, sp:ContactCreditCard, sp:CityCardPaymentMethod, sp:OtherPaymentMethod, sp:BlikMobilePaymentMethod, sp:VippsMobilePaymentMethod, sp:SwishMobilePaymentMethod
