Amazon’s systems are barcode-driven. Each product you send to Amazon FBA fulfillment centers require a barcode so that it can be tracked throughout the fulfillment process.
Label products
Products that do not qualify for stickerless and commingled inventory must have FBA labels in order to be received at Amazon’s FBA centers. By selecting the Labeling required filter on the Label Products page, you can view the products in your plan that require labels. For products that require labels, you must affix a label to each unit of the product, and the label must cover any existing barcodes.
Print labels
You have several options for printing product labels:
Please note that Amazon can only label products that have an product identifier (UPC, EAN or JAN) on the product itself.