How do I check if my GA4 has Google Consent Mode v2 configured correctly?

Run a free NiceLookingData audit on your GA4 property. The audit runs 58 checks across configuration, data quality, measurement, compliance, and optimization — including any rule that touches Google Consent Mode v2 — and emits plain-English findings in 60 seconds.

Definition · GA4 Glossary

What is Google Consent Mode v2?

A required framework for adjusting how Google tags behave based on the user's cookie consent choices, especially critical for European (EEA) compliance.

Consent Mode v2 is no longer optional if you want to run retargeting campaigns in the European Economic Area (EEA) or UK. It acts as an API between your cookie banner (Consent Management Platform) and your tracking tags.

Basic vs. Advanced Mode

Basic Consent Mode: If a user denies cookies, no Google tags fire at all. Zero data is sent.
Advanced Consent Mode: If a user denies cookies, Google tags still fire, but in a strict "cookieless" ping state. This allows GA4 to model conversions without tracking the specific user, preserving overall reporting accuracy.

The v2 Updates

V2 introduced two new mandatory parameters: ad_user_data (consent to send user data for ads) and ad_personalization (consent for remarketing). If your GTM container isn't passing these correctly, Google Ads will suspend your audience lists.

From definition to diagnosis

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Related terms.

Third-Party Cookie

A tracking cookie set by a domain other than the one the user is currently visiting, traditionally heavily used for cross-site ad retargeting.

First-Party Cookie

A tracking cookie created and read only by the exact domain the user is currently visiting.

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