It contains additional information provided by the payment processor.

Parameter	Description
channelReferenceId	Reference ID returned from channel
GrabPay
paymentMethod	Payment option that the user chose during the payment, e.g. GPWALLET, POSTPAID, INSTALMENT_4.
DuitNow QR
DbtrAgt	User bank/wallet account issuer during the payment, e.g. MBBEMYKL
DbtrAcct_Type	User account type, e.g. SVGS, CCRD, CACC, WALL.
TxnType	User account origin and payment location, e.g DOMESTIC, CROSSBORDER.
UnionPay
discountDescription	Describe the discount information.
discountAmount	Total discount amount applied in the payment.
netAmount	Total net amount paid by the user after deducting the discount amount.
baseDiscountAmount	Total discount amount in the user wallet currency.
baseNetAmount	Total net amount paid in the user wallet currency.
Alipay+
walletIssuer	Payment providers like digital wallet, bank app, and etc.