It is highly desired and seems to be standard POS functionality to be able to handle processing Manufacturer coupons by simply scanning the coupon barcode and having the discount identified.

The GS-1 barcode format should be able to be parsed at the register level. Secondary to this the headquarters should have the capability to easily import vendor provided coupon details into the system so that they match the barcode specifications. So a simple discount of $2.00 off should be able to be imported and tied to the proper MFR coupon UPC.

It's not feasible to use system generated coupon UPCs in place of MFR issued barcodes or to manually create discounts for every MFR issued coupon when the UPC cannot be parsed by the POS.