The EAN 13 code for coupons is a type of barcode used to recognize and process coupons and vouchers at checkout. This specific barcode allows for automatic verification of the coupon’s validity (expiration date, corresponding product, etc.) and the application of the discount to the receipt. Furthermore, it facilitates the implementation of remote processing with the processing center, thus simplifying operations at this level. Unlike the standard EAN 13 code used to identify products, the coupon barcode replaces the first three digits, which identify the country, with the specific code “999”.