If you’re looking to start selling on Amazon then you need to learn about Amazon UPC codes.
Online sellers need a UPC code because they use it in the product ID section of their new Amazon listing. Without a code in the Amazon Product ID section you can’t list your product.
Amazon’s only requirement is that you need to buy a “GS1 UPC code” to finalize your product listing and start selling on Amazon. Remember, you cannot create your own Amazon UPC code.