Amazon's FNSKU (FBA barcode) requirement

Amazon requires an FNSKU (FBA barcode) to identify who owns the inventory and which listing it belongs to once products arrive at a fulfillment center.

Manufacturer barcodes (UPC, ISBN) identify the product itself, not the seller. If multiple sellers send in the same product with the same UPC, Amazon has no way to tell whose unit is whose.

FNSKU barcodes are unique to a specific seller and listing, so Amazon always knows which seller owns each item and which listing it belongs to.

How do we incorporate this barcode?

You have two options:

1. We apply the labels. Send us your FNSKU labels, and we'll apply them to the books before shipping your inventory to Amazon, for a small fee (see below).
2. Print the FNSKU on the book. Create a separate SKU just for Amazon, with the FNSKU barcode printed on the back cover in addition to the standard UPC/ISBN.

Why does Acutrack polybag books before applying Amazon labels?

Laminated book covers have a smooth, slick surface, so labels sometimes peel off in transit, even though we use label stock with a permanent adhesive. If labels come off any shipment you send to Amazon, it can cause a lot of trouble for you, including non-compliance penalties.

To prevent this, we put each book in a polybag and apply the label to the outside of the bag. The label sticks firmly to the polybag, and the book gets extra protection during shipping.

Cost: $0.35 per label for the polybag-and-label service.