Google Consent Manager: How It Works With Google Ads and GA4
If you run Google Ads or track visitors with GA4, a cookie banner alone does not tell Google anything. Google Ads and Analytics need structured consent signals, and a standard banner does not send them. This is what a Google consent manager actually does. It is the layer that sits between your visitor's choice and your Google tags, translating "accept" or "reject" into signals Google can read. The four signals that matter Google's Consent Mode covers four parameters: ad_storage , analytics_storage , ad_user_data , and ad_personalization . The first two have existed since the original Consent Mode launch and control advertising and analytics cookies. The other two were added in November 2023, according to Google's developer documentation, and specifically govern whether Google Ads can personalise ads or match Enhanced Conversions using hashed customer data. Basic versus advanced implementation Google offers two ways to run Consent Mode. Basic mod...