Hi @Seller_tJd1CaSoE83Xv,

Thank you for reaching out on the Seller Forums!

Please note that Amazon barcodes should be used on products that meet the following conditions:

• They aren’t tracked via the manufacturer barcode.
• They’re in used condition.
• They don’t have a scannable UPC, EAN, JAN, or ISBN.
• They’re media products.
• They're a restricted or dangerous goods.
• They’re a consumable or topical product (such as a baby or infant product).

When placing Amazon barcodes on a product, you will want to make sure that you do the following:

• Put the correct barcode on each item.
• Cover all other visible barcodes, except for any serial number barcodes or Transparency authentication code labels.
• Make sure the barcode is scannable after applying any prep materials.
• Do not place the barcode on a curve or corner of the package.
• Allow 0.25 inch between the edge of the label and the edge of the packaging.
• Ensure that each item in a case pack has an Amazon barcode and that any barcodes on the case have been removed.

For more information on barcode requirements and best practices, I would encourage you to read through the following resources:

• Use Amazon barcodes to track inventory
• FBA product barcode requirements
• FBA packaging and prep series: Barcode types and requirements

I hope this helps! Please let me know if you have any additional questions.

All the best,

Jameson