Must always be present and set to
A reference used by the Seller to group transactions, which is used to aid reconciliation.
PropertyValue that contains a text value useful for reconciliation.
The identifier of the payment held by the Broker and/or Payment Provider.
Optional free text description of the payment method for the Booking System, to help the Seller in discussions with the Customer (e.g. 'AcmeBroker Points' or 'AcmeBroker via Credit Card').
paymentMethod must not be used, and is reserved for future versions of this specification.
A reference to the specific Payment Provider that is used.