If an item is not entered into the system and an employee is trying to ring it out, it does not give an alert. It still has the same scanning ring. In VERY small font it says "you do not have the permission to enter this" or something to that effect. It would be nice to have a different "error" sound for things that were scanned, but not actually " rung up". Or have LARGE font that the item wasn't rung up.