Warning Tracking & Analytics
More than one GA4 property on the page
- Severity
- Warning
- Impact
- Medium
- Effort to fix
- Low
- Issue code
track_multiple_ga4
Why it matters
Several GA4 IDs send the same visits to different properties. Fine if intended (e.g. a roll-up property), otherwise an old or test property is still collecting data.
How to fix it
Confirm each GA4 ID is intended. Remove old or test properties from the page and from GTM.
What this means
The page sends data to more than one GA4 property. The evidence lists the measurement IDs, for example G-ABC123, G-XYZ789.
Is it intended?
Sometimes yes. Common legitimate setups:
- A roll-up property collecting data from several sites, plus each site's own property.
- An agency or partner property alongside the client's.
- A regional property next to a global one.
Often it is not:
- An old property from before a rebuild that was never removed.
- A test or staging property left in the live code.
- A plugin that adds its own GA4 tag while GTM also sends to a different ID.
Why it matters
Each extra property means extra requests on every page, more data shared with Google under each property's settings, and confusion about which property holds the real numbers. A forgotten property may also have different consent, retention or filter settings than the one you use.
How to fix it
- Identify each ID in the GA4 admin: under Admin > Data streams, the stream shows its measurement ID.
- Keep the properties you use, and remove the tag that sends to the others from the page code, plugin or GTM container.
- If several properties are intended, send them from one place, ideally GTM, so they are easy to see and maintain.
Verify the fix
Recrawl and check the evidence. See Google Tag Manager audit to see which GA4 IDs each GTM container sends to.
How it affects your score
Tracking issues have their own Tracking score and never lower the SEO site health score. They still appear in the Action Plan, the issues CSV, Slack messages and Linear tickets. Weakens rankings, crawling or measurement. Fix after critical issues.
Find the affected URLs
Open Crawl > Issues and pick More than one GA4 property on the page. Each affected URL is listed with its evidence, and Copy URLs or Export URLs hands the list to a developer. The issue also appears in the Action Plan, ranked by impact (medium) and effort (low), and in the issues CSV under the code track_multiple_ga4. After fixing, run a new audit and use Compare to confirm the URLs moved to fixed.
Guides that cover this issue
Related Tracking & Analytics issues
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- CriticalPage view sent twice on one page load
- CriticalPersonal data or tokens in URL
- CriticalPixel initialised twice on the page
- CriticalTag loaded twice on the page
- CriticalTracking before consent
- WarningAnalytics tag missing on this page