Your product is in stock. The page is live. And someone else is selling it. This
By James Wakefield ๐ก ยท November 4, 2026 ยท Curated by George's Blog
Your product is in stock. The page is live. And someone else is selling it.
This is one of the stranger facts of being a 1P Vendor. Amazon buys your stock and lists it. Amazon can still hand the Buy Box on that same page to a third-party seller.
So how does that happen?
Amazon picks one default seller per product page. Price is the biggest single factor in that choice, ahead of running out of stock. The gaps are rarely dramatic. A reseller sitting slightly under Amazon's price can take it.
Availability matters too. So does delivery speed, because the Buy Box decision is geo-targeted. Whoever can get the item to that shopper fastest has an edge.
๐ง๐ต๐ฒ ๐ฝ๐ฎ๐ฟ๐ ๐ฉ๐ฒ๐ป๐ฑ๐ผ๐ฟ ๐๐ฒ๐ฎ๐บ๐ ๐๐ป๐ฑ๐ฒ๐ฟ๐ฒ๐๐๐ถ๐บ๐ฎ๐๐ฒ ๐ถ๐ ๐๐ต๐ฎ๐ ๐ณ๐ผ๐น๐น๐ผ๐๐.
Organic search position tends to slip at the same time. Your advertising keeps running regardless, so you are now buying traffic for a page where somebody else collects the sale. And the seller holding the Buy Box can often overwrite content on your detail page.
So that isn't one lost sale. Three things move together, usually without anyone raising it: visibility, ad efficiency and how your brand is presented.
Worth knowing today which of your products Amazon isn't actually the one selling.