[arti-fact]

This is not entirely true. Sellers have the option to send in items to the Amazon warehouses with the UPC as the barcode OR with an FNSKU barcode. The FNSKU is a unique barcode that identifies that particular product to you, the seller.

If you send items in to the warehouse with the UPC, they will be considered co-mingled which means anyone else sending the same product with just the UPC will all be stored together. THIS is where you have the issue of the possibility of buying counterfeit products.

If you send the items in with the FNSKU, they will be considered separate from the co-mingled inventory. Anyone that buys from a seller that has the FNSKU will get the items THAT seller sent in, and not from the co-mingled batch.

For retail items, it's really up to the seller how they want to send the items in. For the sake of seller metrics, it would be wise to send in items with an FNSKU so you avoid the issue of a customer buying from you as the seller, but possibly getting a counterfeit item.

To clarify another incorrect statement in this thread: Amazon does not charge extra to not co-mingle the items. They do offer a service where they will add the FNSKU label to your items at .20/piece, but that's only if the seller doesn't want to do it prior to sending the items in.

Source: I'm a seller on Amazon.

[FT_intern]

Is there any way for the buyer to see this difference before buying?

If not, these specifics don't really matter