These fields are optional for refunding a gift card redemption:
- billTo_postalCode
- customerID
- giftCard_escheatable
- giftCard_groupID
- Supported for card-present only.
- giftCard_transactionPostingDate
- giftCardActivationService_reconciliationID
- invoiceHeader_clerkID
- invoiceHeader_merchantDescriptorCountry
- merchantDefinedData_mddField_1 and merchantDefinedData_mddField_2
- merchantTransactionIdentifier
- pos_terminalID
- transactionLocalDateTime