ScanMan and GateKeeper modules
 
As already discussed, a multi quantity auto sale pass can be configured so that when it is scanned in ScanMan or GateKeeper modules a screen for each of the DCIs configured in the pass’s Auto Sale tab comes up to allow the operator to select the quantity of auto sale items to use.
The operator chooses the number or validations per screen (item) and hits OK. An operator isn’t allowed to enter a number outside the limit that appears at the end of line Enter number of…(0-2) and a number must be entered to progress to the next screen.