Tracking Integrations

Marketing & Content Hub Reporting & Analytics
1

Hi everyone - we’ve been in the process of setting up our hubspot account and had some questions re: the tracking integrations within the settings.

Basically we have an external site that’s connected to our GA4 account via GTM.

Since we have a new hubspot account, we wanted to see some of the data come through so have connected this via GTM also.

I noticed that someone’s added our GA4 measurement ID and also added our GTM ID.

Could this cause duplicate tracking?

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Yes, adding both the GA4 Measurement ID and GTM ID separately in HubSpot can cause duplicate tracking issues.

Here’s why and how to fix it:

Why This Causes Duplicate Tracking

  1. Tracking via GTM:

    • If you’ve already connected GA4 via Google Tag Manager (GTM), it means GA4 is firing through GTM.

  2. Direct GA4 Integration in HubSpot:

    • If someone manually added the GA4 Measurement ID directly in HubSpot, it may be sending duplicate pageview events to GA4—one from GTM and one from HubSpot.

  3. Double Events & Skewed Data:

    • You may see double pageviews, inflated metrics, and potential issues with conversions.

How to Check if You Have Duplicate Tracking

Step 1: Use GA4 DebugView

  • Go to GA4 > Admin > DebugView
  • Open your website in incognito mode and click around.
  • If you see two identical pageviews per page load, you have a duplicate tracking issue.

Step 2: Use Tag Assistant or GTM Preview Mode

  • Open Google Tag Manager and click Preview.
  • Navigate through your website and check if GA4 pageviews are firing twice.
  • Alternatively, use Google Tag Assistant Chrome extension.

How to Fix It

Option 1: Remove Direct GA4 Integration in HubSpot

  • If you’re managing GA4 via GTM, remove the direct GA4 Measurement ID from HubSpot.
    • Go to Settings > Tracking & Analytics > Google Analytics
    • If GA4 is manually connected here, remove it and rely on GTM instead.

Option 2: Remove GA4 Tag from GTM (Not Recommended)

  • If you prefer using HubSpot’s built-in GA4 tracking, you can remove GA4 from GTM and let HubSpot send events instead.
  • However, GTM gives more flexibility and control over tracking, so this isn’t ideal.

Option 3: Use GTM to Block Duplicate Events

  • If you must keep both GTM and HubSpot tracking, modify your GTM settings:
    • Add a trigger exception in GTM to prevent GA4 pageviews from firing twice.
    • Use custom variables to detect existing tracking and block duplicates.

Best Practice Recommendation :rocket:

:white_check_mark: Use only GTM to handle GA4 tracking.
:cross_mark: Avoid adding GA4 directly in HubSpot if GTM is already used.

Let me know if you need help debugging!