Do I need to register my barcode numbers?

Once you purchase your Barcode Numbers from, there is no further registration process required. Those are your unique numbers and only you will decide what product to assign them to. There is no further required or mandatory worldwide registration. You will provide all of your barcode and product information to each and every retailer where your products are to be sold. They will then enter that information into their point of sale database. That is what allows products to be sold in many stores with the same barcode, but have varying prices.