[programmer_dude]

How does Amazon do this SKU aggregation? It must use some kind of product identifier (barcode / QR code / RFID tag etc.)? Why not include vendor information with it? Please stop using this tired excuse. It is not a difficult problem to solve if you have the intent.

[CommieBobDole]

I don't think it's a tired excuse, I think it's a withering indictment of Amazon's complicity in selling counterfeit merchandise.

It's not a difficult problem to solve at all, Amazon simply chooses not to solve it because the upside is profit and the downside is mostly reputational which is hard to convert to a number on a spreadsheet, so for business purposes it might as well not exist.

[fmajid]

Google “Amazon stickerless commingled inventory” for the gory details.