WooCommerce Amazon integration that keeps one stock count

We always send your WooCommerce count to Amazon, whatever fulfilment method a listing uses. The return leg is where the split is: we only take changes back from Amazon for the items you pick, pack and post yourself. Anything Amazon stores and ships keeps the count Amazon has, and we leave it alone.

That’s a decision rather than a gap. Amazon’s warehouse knows what is on its own shelves and your WooCommerce site doesn’t, so writing a WooCommerce figure over an FBA count would replace a true number with a guess. Where one SKU is sold both ways, the merchant-fulfilled part is the half that tracks your site.

So the question to answer before you switch anything on is which of your listings Amazon fulfils. It decides which way each one moves, and it’s the thing people most often assume rather than check.

An Amazon sale arrives in QuickSync like any other order and corrects your WooCommerce count on the way through. What can’t happen is the return trip: Amazon gives us no way to write a tracking number onto one of its orders, so once you’ve posted the parcel the number stays in QuickSync and on the WooCommerce side.

For merchant-fulfilled sales that’s a real step rather than a detail, because Amazon wants the tracking on its own side and confirming it stays a manual job in Seller Central. Nothing we do removes it. It’s the one piece of double handling on this pairing, and we’d rather it were on the page than a surprise in week two.

WooCommerce has no such limit. We write the carrier and the number straight onto the order there, so anything that sells on your own site is finished in one place.

Search for a WooCommerce Amazon integration and you land on three different products wearing one name. The first is selling your own goods on Amazon: your listings, your stock, a seller account, and something holding the count on your site and the count on the marketplace in agreement. That is the one this page is about.

The second is Amazon Pay, which is a checkout button. It’s a WordPress plugin that appears under Settings and Payments in WooCommerce and lets a shopper pay on your site with the card and address already held on their Amazon account. It creates no listing and moves no stock figure, and it runs quite happily on a shop that sells nothing on the marketplace at all.

The third goes the other way: pulling Amazon’s catalogue into WooCommerce to earn affiliate commission on goods that were never yours. No stock of yours is involved, so there is nothing to keep level. Worth settling which of the three you’re after before you install anything, because the tools don’t overlap and only one of them is a sync.