Consent Mode v2

Consent Mode v2:
legal compliance without losing data visibility

Since March 2024, Consent Mode v2 has been mandatory to use Google audiences and measure conversions reliably. We implement it correctly so you comply with European regulation without losing the ability to measure, optimize and scale your campaigns.

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  • 100% Projects with consent properly implemented
  • 100% No lock-in
Certified partner

Team certified in Google and Tag Manager

  • Google Partner
What we do

Consent Mode v2 done right
is more than a toggle

We implement every piece — CMP, GTM, GA4 and ad platforms — so consent is handled properly and your data still drives real decisions.

Audit of your current CMP

We review which Consent Management Platform you have (Cookiebot, OneTrust, Iubenda, Didomi, Usercentrics) and how it integrates with your measurement.

Consent Mode v2 implementation

Correct configuration of the four signals: ad_storage, analytics_storage, ad_user_data and ad_personalization.

Modeled conversions

Activation of conversion modeling to recover conversions from users who reject cookies.

GA4 integration

We make sure GA4 receives data correctly with and without consent, without distorting reporting.

Google Ads & Meta integration

So your campaigns keep optimizing with audiences and conversions properly declared, not blind.

Server-side tracking + Consent Mode

Combination of both layers to minimize data loss without bypassing user consent.

Major CMS support

Platform-specific implementation: WordPress, Shopify, PrestaShop, WooCommerce and headless setups.

Validation and QA

Testing with DebugView, Tag Assistant and pre/post data comparison to make sure measurement is consistent.

Why it matters in 2026

Without Consent Mode v2,
your campaigns stop optimizing

European privacy regulation and the Digital Markets Act are no longer an intent: they're an obligation. And Google has made Consent Mode v2 the technical toll for keeping its ecosystem usable.

  • Custom audiences in Google Ads

    Without Consent Mode v2, you cannot activate custom audiences in the Google ecosystem. With it properly implemented, you keep retargeting and lookalikes alive.

  • Conversions from non-consenting users

    Without Consent Mode v2, users who reject cookies are invisible to your measurement. With it activated and modeled, a significant portion of those conversions is recovered (rough figures from Google: between 30% and 70%).

  • Wrong implementation = data loss or duplication

    A bad implementation can cause event duplication, contradictory data across platforms or total measurement loss. That's why audit and QA are core parts of the work.

Growzz methodology

How we implement
Consent Mode v2

Five steps so user consent and measurement work together, not against each other.

01

Audit

We review your CMP, GTM, GA4 and ad platforms to detect the current state of consent and measurement.

02

Implementation design

We define the consent model adapted to your CMS, tools and the project's legal context.

03

Technical implementation

CMP, GTM, tags, events and the four Consent Mode v2 signals — all configured.

04

QA validation

End-to-end testing with DebugView, Tag Assistant and the CMP's own tools. We don't sign off without validation.

05

Monitoring

Ongoing tracking of consent behavior, modeled data and the impact on campaign reporting.

Case studies

Consent Mode v2 is part
of every Growzz measurement setup

We implement it in every Growzz project as part of the measurement foundation. See how it integrates in real strategies.

See case studies
Why Growzz

Technical implementation
with business perspective

Consent Mode v2 is not a checkbox: it's a piece that connects legal, technical and marketing. We implement it thinking about the real impact on your campaigns, not as paperwork.

  • GDPR and Digital Markets Act compliance without sacrificing measurement
  • Lost-conversion recovery via modeled conversions
  • Custom audiences in Google Ads that would stop working without Consent Mode v2
  • Server-side tracking + Consent Mode working as a single block when applicable
  • CMS-specific implementation (WordPress, Shopify, PrestaShop, WooCommerce)
  • No lock-in. Pricing built after a first conversation
Frequently asked questions

Frequently asked questions
about Consent Mode v2

What is Consent Mode v2 and why is it mandatory?

Consent Mode v2 is a Google system that communicates the user's consent state (whether they accept advertising and analytics cookies) to Google platforms: GA4, Google Ads, Display & Video 360. Since March 2024 it is mandatory to use custom audiences and measure conversions completely in the Google ecosystem. Without it, the platforms lose the ability to optimize campaigns with European data.

Do I lose data if users reject cookies?

With Consent Mode v2 properly implemented, not entirely. Google activates what's called "conversion modeling": it estimates what would have happened if those users had accepted cookies, based on the aggregate behavior of similar users who did. Without Consent Mode v2, users who reject cookies are invisible. With it, a significant portion of the data is recovered.

Is my current CMP compatible with Consent Mode v2?

The major CMPs (Cookiebot, OneTrust, Iubenda, Didomi, Usercentrics and others) have native integration with Consent Mode v2. The important thing is not just that the CMP supports it, but that it is correctly configured and connected with GTM and GA4. We audit it on every project before proposing changes.

Does Consent Mode v2 work with server-side tracking?

Yes, and combining them is the current best practice. Server-side reduces data loss caused by ad blockers and browser restrictions, and Consent Mode v2 handles the consent layer. We work both layers depending on each project's state.

How much does it cost to implement Consent Mode v2?

Each project is analyzed individually. The proposal depends on your current CMP, the CMS, the complexity of the existing setup and whether it combines with server-side tracking. We work without lock-in and build the proposal after a first conversation.

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Let’s talk about your business and build a clear plan to scale with data.

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