Note: Once the terminal has begun communicating with the Moneris host, i.e., once the "Processing" message is displayed, the transaction can no longer be cancelled.
To cancel a transaction:
● Press the red CANC ANNUL key.
The terminal prints the Merchant copy of the receipt with TRANS CANCELLED on it, and if configured, prints the Cardholder copy of the receipt with TRANS CANCELLED on it, then returns to the transactions menu.