User`s manual

3700 User’s A-57
Prompts and Messages
List of Prompts and Messages
Zero credit auth amount not allowed
This prompt displays when you try to process a credit card
authorization for a zero amount, and your system is
programmed to prevent zero-amount authorizations. Press
[Clear] to continue. An authorization is not required.
Zero entry not allowed
This message displays if you enter zero at any time that the
UWS is expecting a nonzero numeric entry. Press [Clear] to
continue.