1. Check That the Tag Exists on Landing URLs Only
Open one of your ad’s final URLs in Chrome.
Use Tag Assistant (Legacy) or Google Tag Assistant Companion.
You should see your AW-ID (e.g. AW-123456789) under “Google Ads tag.”
If you only see GA4 (G-ID), the Ads tag hasn’t fully linked.
In GTM, make sure you created a Google Ads Conversion Tag, not just GA4.
Trigger it on Page View – All Pages for now.
2. Mark Your Conversion as “Primary”
In Google Ads → Tools → Conversions, ensure:
The conversion action you created (linked to that AW-ID tag) is marked as Primary, not Secondary.
It’s set to Count: Every (for test purposes).
Google’s limited delivery flag often clears after a primary conversion event fires.
3. Double-Check Consent Mode
If you’re using a cookie banner or consent manager, the tag may not fire until consent is granted.
To test: open the site in an incognito window with all cookies accepted.
If it fires there but not in normal browsing, Consent Mode is delaying your tag.
4. Check Content Security Policy (CSP)
If your landing page has a CSP header, make sure it allows:
script-src https://www.googletagmanager.com https://www.google-analytics.com https://www.googleadservices.com connect-src https://www.google-analytics.com https://www.googletagmanager.com https://www.googleadservices.com
Otherwise, Google’s crawler can’t verify your tag.
5. Give It Time (and One Conversion)
Once a conversion fires successfully from a tagged click, the warning often disappears within 24–48 hours.
