reverseEmvTransaction

Reverse an EMV card declined transaction and return a payload that includes the voided transaction.

Authentication

This mutation requires:

Server credentials

Required inputs are listed first. Select a referenced type to inspect its fields.

Top-level output field from creating a transaction.

clientMutationIdString

An identifier used to reconcile requests and responses. 255 characters maximum.

transactionTransaction

The transaction representing the charge on the payment method.