If your business runs Google Ads and uses Google Analytics, a structural change to how these platforms share and control data took effect on June 15, 2026. This is not a routine platform update — it affects your privacy policy, your cookie consent banner, and how your CMP communicates with Google's ad infrastructure.
What changed on June 15?
Until June 15, 2026, when you linked Google Analytics to Google Ads, data flowed through two separate control gates:
- Google Signals (in Google Analytics) — which could prevent Google Ads from linking a website visitor to their personal Google account profile
- Consent Mode (in Google Ads) — the consent signaling framework that governs how data is collected and used in ad campaigns
Starting June 15, that backstop is gone. Google Ads now relies exclusively on the signals your CMP sends through Consent Mode. Google Analytics governs data used within Analytics itself.
The practical result: your CMP and Consent Mode configuration are now the only line of defense. If they are misconfigured, there is nothing downstream to catch the error.
The two-path decision every business now faces
After June 15, every visitor interaction with your consent banner routes data one of two ways:
- Consent granted to
ad_storage— Google Ads receives full permission to use cookies, device identifiers, and personal profile linking for that user - Consent denied to
ad_storage— Google Ads is blocked from accessing that data
There is no middle ground managed by Google Signals anymore. The signal your CMP sends is the signal Google acts on.
What Cookie Consent Hub supports
Cookie Consent Hub transmits all four Consent Mode v2 parameters:
| Consent category | Google signal |
|---|---|
| Marketing | ad_storage, ad_user_data |
| Personalization | ad_personalization |
| Analytics | analytics_storage |
We support both basic and advanced Consent Mode implementations:
- Basic — Google tags are blocked until user consent is given
- Advanced — Google tags load with default-denied states and send cookieless pings until consent is granted
Three steps to take now
1. Audit your privacy policy and cookie notices
If your policies reference Google Signals as an independent control over advertising data flows, those statements are now inaccurate. Update your privacy notice to reflect that Google Ads Consent Mode is the sole control for ad data collection.
2. Verify your CMP integration
Confirm that your setup correctly sends ad_storage, ad_user_data, and ad_personalization signals, and that user choices are faithfully translated into those signals.
If you use Google Tag Manager, ensure the Cookie Consent Hub GTM template is installed with a Consent Mode Init tag on Consent Initialization – All Pages, plus category triggers (marketing-activated, analytics-activated, etc.). See our GTM setup guide.
3. Test conversion tracking end-to-end
- Open your site in an incognito window
- Accept Marketing cookies
- Complete a test conversion
- Verify in GTM Preview that conversion tags fire after consent is granted
- Allow 24–48 hours for Google Ads reporting
Default denied is expected
Seeing a default consent state of denied for new visitors is correct advanced Consent Mode behaviour. Tags may load, but non-essential storage remains denied until the user opts in. This is the GDPR-compliant default.
Need help?
If conversions are missing from Google Ads after June 15, review your GTM consent triggers and confirm Marketing consent is granted before conversion events fire. Our support team can help you verify your setup — contact us.