Get Barcodes for Selling on Amazon
In order to sell on major online marketplaces, you’ll need an authentic way to identify your products. GS1 is the global authority for the unique identification of products and companies, which serve as the building blocks for barcodes.
While you don't scan a barcode during online checkout like you would at a cash register, you will still use the number sequence under the barcode (also known as a GTIN) that uniquely identifies the product.
Amazon Recommends GS1
Amazon recommends obtaining a GTIN (product ID) - directly from GS1 or the product manufacturer. Here's a direct quote from their Seller Central help site:
"If you do not have a product ID for your product, you can request it from the manufacturer. If you manufacture the product yourself, visit the GS1 standards website for more information."*