Unique identifier generated on the iVeri Gateway and allocated for a series (Authorisation, Debit and Credit) of related legs of a transaction. This can be used as the UTI (Unique Transaction Indicator) required to be printed on receipts.
| Command | In | Out |
| Authorisation | O | |
| Debit | O | |
| Credit | O | |
| AuthorisationReversal | ||
| Void | ||
| GetData | ||
| Cancel | ||
| GetHMAC | ||
| GetSystemInfo |