Dettmann Media

Google just announced an important update that will impact how data is controlled between Google Analytics (GA4) and Google Ads.

At a high level, this change is about simplifying consent and removing conflicting controls between platforms. But under the surface, it has real implications for tracking, attribution, and campaign performance.

Here’s what’s changing, why it matters, and what you should do next.

The Big Shift: One System Controls Ads Data

Starting June 15, 2026, Google is separating how consent is handled between Analytics and Ads.

Before:

• Google Signals + Consent Mode both influenced how advertising data was collected and used
• Controls overlapped between GA4 and Google Ads
• This created confusion and inconsistencies

After:

• Google Analytics settings (Google Signals) control Analytics data only
• Google Ads Consent Mode (ad_storage) controls all advertising data
• Even data shared from GA4 into Google Ads is governed by Ads consent settings

Simply put: Google Ads now has full control over advertising data usage, based on user consent.

Additional Resources

Meta’s New Manus AI Tool Could Change Marketing Faster Than Any Algorithm Update

The Future of Browsing Is Here: What Google Has Announced

Search Is Now Personal: What Google’s AI Mode Means for Marketers

Why Google Is Making This Change

This is ultimately about clarity and compliance.

Google is trying to:

• Eliminate conflicting settings between platforms
• Make consent easier to manage
• Ensure user privacy preferences are consistently honored

From a marketer’s perspective, this reduces ambiguity. From a compliance perspective, it raises the stakes.

What This Means for Your Tracking

This change directly affects how cookies and user data are used for:

• Audience building
• Conversion tracking
• Campaign optimization
• Bidding performance

The key variable now becomes:

👉 ad_storage (Consent Mode setting)

This single setting determines whether Google Ads can:

• Use cookies
• Associate users with Google accounts
• Improve targeting and measurement

Scenario Breakdown (This Is the Part That Matters)

✅ If Google Signals is ON

• No action required
• Your setup continues to function as expected

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⚠️ If Google Signals is OFF

• Google Ads will still use advertising cookies if users consent to ad_storage
• This includes:
  • Signed-in user data
  • Enhanced audience targeting
  • Improved conversion tracking

Important:
Google Signals will no longer limit this behavior

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🚫 If You Set ad_storage = denied

• Google Ads cannot use cookies or device identifiers
• This will:
  • Reduce conversion tracking accuracy
  • Limit audience targeting
  • Hurt campaign performance

This is a hard tradeoff between privacy and performance.

The Hidden Risk Most Businesses Will Miss

This change shifts responsibility away from platform settings and onto:

Your consent setup and privacy disclosures

You now need to ensure:

• Your consent banner is properly configured
• Consent Mode is implemented correctly
• Your privacy policy clearly explains:
  • Data collection
  • Use of Google services
  • User control (including deletion via Google My Activity)

If this isn’t aligned, you’re either:

• Under-tracking (losing data and performance)
• Or risking compliance issues

What You Should Do Right Now

Here’s the practical action plan:

1. Audit Your Consent Mode Setup

• Verify ad_storage behavior
• Confirm defaults and user-triggered updates
• Check regional settings (especially for GDPR/CCPA regions)

2. Review Your Google Ads + GA4 Link

• Ensure accounts are properly connected
• Understand what data is flowing into Ads

3. Evaluate Your Risk Tolerance

Ask yourself:

• Do we prioritize maximum data + performance?
• Or strict privacy controls?

Your answer determines how you configure consent.

4. Update Privacy Disclosures

Make sure your site clearly states:

• Data may be linked to Google user accounts
• Users can control/delete data via Google

5. Use the 90-Day Grace Period (If Needed)

If you’re not ready:

• You can request a temporary extension
• Use this time to fix implementation and messaging

Final Takeaway

This isn’t just a technical update.

It’s a shift toward: Consent-driven marketing infrastructure

The businesses that win will be the ones who:

• Understand their data flow
• Configure tracking intentionally
• Balance privacy and performance strategically

Most won’t.