Payment Method Requirements

A number of payment methods have strict requirements when posting a new payment to Paytrail. This page lists the payment method related information which you should consider when developing your integration.

Walley (Collector Bank)

  • VAT must be included in the price (VAT_IS_INCLUDED = 1).
  • Item quantity (ITEM_QUANTITY[N]) should be an integer.
  • Product details should be sent with the ITEM_* fields.
  • Customer details should be sent with the PAYER_PERSON_* fields.
  • Maximum payment total is 5000 €.


  • Payment total sum must be between 20–3000 €.


  • Only available as an interface.
  • Requires own agreement with PayPal and is hidden until credentials are saved in Merchant’s Panel.