I'm not exactly sure what you are talking about. Are you talking about price alterting stickers like repackage, online only, etc? The extra barcode will automatically change the price and mark the proper reason in the POS (clearance pricing is for every item, these tags are only for a few items) and then properly take it out of the system. Some items don't always get automatically added to inventory, I am thinking about online only items, or ones that are sold at other stores that get returned to yours, so printing these labels let's the system know you have them.No, I was wondering why the piece of paper is there to cover the printed side of the price. When I cashier I have to separate the two pieces to scan the price.