Does Amazon Consent Signal Actually Improve Your Ad Campaign Results?
If you run Amazon Ads for your ecommerce store, your campaign data already has gaps in it. Every time a shopper clicks "reject all" on your cookie consent banner, Amazon stops receiving tracking data for that session. Amazon Consent Signal (ACS) is the mechanism that tells Amazon what a visitor chose and keeps your ad performance measurable. This is not a minor technical detail. According to the Seers AI ecommerce blog , ecommerce brands lose nearly half their visitor-level data without consent signals in place. For a store spending thousands on Sponsored Products or DSP campaigns, that gap translates directly into wasted budget and inaccurate reporting. What Amazon Consent Signal Actually Does ACS sends three pieces of information to Amazon's advertising systems. The first is whether the shopper approved processing of their personal data. The second is whether they approved ad-related data storage. The third is their country code, which helps Amazon apply the corre...