What an Amazon Certified Consent Management Platform Actually Does for Sellers in 2026
There's a quiet rule change inside Amazon Ads that's been hurting attribution for sellers since the start of 2026, and most teams haven't noticed yet. The change isn't legal. It's mechanical. And it's costing real money in DSP campaigns every week. Here's what's actually happening, and what to do about it. What 'Amazon-certified' really means Amazon now reviews each Consent Management Platform against a strict technical checklist. The most important box: full support for the Amazon Consent Signal, also called ACS. ACS is the framework Amazon uses to confirm a shopper's exact choice on cookies, marketing, and ads measurement. If a CMP ships ACS correctly, Amazon certifies it. If it doesn't, Amazon treats it as a generic banner regardless of how popular the brand name is. Why this changes the numbers on your dashboard When ACS is missing or malformed, Amazon Ads quietly defaults to restricted tracking. DSP audiences shrink. Sponsored...