Consent Mode V2 Is Required for EEA Traffic — Here's What It Does and Which Type You Need
Google introduced Consent Mode in 2020 and overhauled it in 2023. Since March 2024, any site with European traffic needs it configured correctly or GA4 silently drops conversion data. This guide breaks down the three consent types, explains how Google models the data you lose, and shows you how to implement it for GA4.
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Three Consent Types Compared
No Consent Restrictions, Basic Consent Mode, and Advanced Consent Mode — each explained with trade-offs so you can pick the right one for your setup.
GA4 Implementation Walkthrough
Step-by-step instructions for configuring Consent Mode v2 inside GA4, including which tags need consent signals and which fire regardless.
Conversion Modeling Explained
How Google uses machine learning to recover the conversion data that consent banners block — and what that means for your reporting accuracy.
For any marketer with European traffic. Required since 2024.
Consent banners are on every website now. But most marketers installed one, checked a box, and moved on — without understanding what happens to their data when a visitor declines cookies. The answer: GA4 stops collecting it. No events, no conversions, no attribution for that session.
Consent Mode v2 gives Google a structured way to handle declined consent. Instead of losing the data entirely, it sends cookieless pings that feed Google's conversion modeling. But only if you've configured the right mode for your situation — and most sites haven't.
- ✓ Not sure which consent type applies to you? The guide compares all three modes side by side — No Consent Restrictions, Basic, and Advanced — so you can see exactly which tags fire under each scenario.
- ✓ Wondering how Google recovers lost conversions? The conversion modeling section explains the machine learning approach Google uses to estimate what would have happened without consent restrictions.
- ✓ Need to configure this for GA4 specifically? The implementation section walks through the GA4 settings and tag configuration required to send consent signals correctly.
- ✓ Confused about the 2024 enforcement deadline? Google now requires Consent Mode for any site sending EEA traffic data to Google Ads or GA4. The guide covers what changed and what happens if you haven't set it up.
- ✓ Already have a consent banner but not sure if it's enough? A banner alone doesn't enable Consent Mode. The guide explains the difference between showing a banner and actually passing consent signals to Google's tags.
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Written by Someone Who's Navigated Every Google Privacy Change
Jeff Sauer has been working in digital analytics since 2005 and has trained 50,000+ marketers through MeasureU. He's guided teams through every major Google privacy shift — from third-party cookie deprecation to Consent Mode v1 and now v2. This guide distills that experience into the decisions that matter for your GA4 setup.
Consent Mode v2 isn't optional anymore — it's how you keep your GA4 data intact
Download the guide, check your current setup, and make sure Google is actually receiving the consent signals it needs from your site.