If a receipt is printed multiple times with same barcode, can the guest redeem each of those tickets and get more points than deserved? Basically how barcode scanning works in case multiple barcodes are printed?
If duplicate receipts are printed with a same barcode, Guest can only redeem one of them.
While scanning each of those receipts, he/she will be able to get the reward with the first scan. Any further attempts will generate an error and will restrict user from earnings. Thus, a guest would not get more points than deserved.
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