New
We've added support for Amex Approval Codes to our transactions. When you receive a transaction on a webhook, or when you GET a transaction via the API, you will now have an amexApprovalCode property on the transaction identifiers object.
"identifiers": {
"amexApprovalCode": "123456",
"mastercardAuthCode": null,
"mastercardRefNumber": null,
"mastercardTransactionSequenceNumber": null,
"MID": "123456789",
"visaAuthCode": null
}