Point of sale (checkout)
If your product will be sold at retail point of sale (or checkout), you’ll want to use a UPC-A barcode. It’s the most common barcode required by retailers in North America. U.P.C. barcodes help to ensure that all products are properly identified at retail point of sale. The U.P.C. barcode promotes rapid product scanning, resulting in more accurate data that can be used by your trading partners.