Optional Fields for Electronic Benefits Transfer {#sis-pymnt-svcs-local-ebt-optfields}
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ebtDetails.isBalanceInquiry
:
Set the value to `true` for a balance inquiry. The transaction amount must be set to `0`.

ebtDetails.isVoucher
:
Set the value to `true` for a voucher transaction.

amountDetails.cashbackAmount
:
Set the value to the cashback amount for a cashback transaction.