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Catalog Defender watches the catalog.
Amazon changes your listings and does not always tell you. Catalog Defender checks your ASINs on a schedule and puts every alert in one place, so a suppressed listing is something you hear about today rather than when the sales drop.
The things Amazon changes quietly
Catalog problems rarely announce themselves. They show up later as a bad week.
Listing changes
Titles, bullets, images and backend fields, checked against what you last approved.
Suppressions and errors
ASINs that have gone inactive, stranded or search-suppressed, surfaced as they happen.
Hijackers on the listing
New sellers appearing on your ASINs, so you can act before they take the Buy Box.
Because it is ours
Danan co-founded Catalog Defender, so this is not an arms-length recommendation and it would be strange to pretend otherwise. It exists because the same problem kept turning up in review work: a brand asks why sales fell, and the answer is a catalog change nobody caught.
The two fit together. eCom Triage deals with the reviews that break Amazon’s rules. Catalog Defender deals with everything else on the listing that quietly moves. You can use either one on its own.
Keep an eye on the catalog
See what Catalog Defender would flag on your ASINs.