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Universal Product Code. The Universal Product Code (UPC) is a barcode symbology that is widely used in the United States, Canada, United Kingdom, Australia, New Zealand, in European and other countries for tracking trade items in stores. UPC (technically refers to UPC-A) consists of 12 numeric digits, that are uniquely assigned to each trade item.
Universal product codes â UPCs â are the 12-digit numbers that appear under the barcodes on many U.S. products. They are given out by GS1 US, a nonprofit group that sets standards for international commerce.niversal product codes â UPCs â are the 12-digit numbers that appear under the barcodes on many U.S. products. They are given out by GS1 US, a nonprofit group that sets standards for international commerce.