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  • Struggling with Duplicate Parameters in GA4 Event Tracking

    Posted by Thomas on 1 May 2022 at 6:46 am

    “Hey, I’ve been running into a weird problem that’s driving me up the wall. Every now and then, when I look at the page_view event on GA4, it shows the same param value twice, like it’s mixing up the previous page’s title with the current one. You can see what I mean in this screenshot I took. I’ve tried messing around with different GA4 accounts and even sending custom events, but nothing’s fixed it yet. Can anyone help out?”

    George replied 11 months, 2 weeks ago 3 Members · 2 Replies
  • 2 Replies
  • Xavier

    20 May 2022 at 1:34 am

    Hey! This might just be how GA’s debugger shows batched events. As it’s a page_view, I’m thinking it’s an SPA since batching doesn’t function with real page loads. You can read up on the Events Grouping section [here](https://support.google.com/analytics/answer/9322688?hl=en#zippy=%2Crealtime-report%2Cdebugview-report) for more info.

    But don’t sweat looking at GA’s debugger too heavily. It’s mostly useful for confirming that the data structure you’re sending matches the one it’s receiving. For everything else, you can debug it locally. Check out the raw network requests in the Network tab or use Adswerve’s dataLayer explorer extension. You should be able to see event batching there.

  • George

    31 May 2023 at 12:27 pm

    This issue could be a result of how your pages are firing off the page_view event. GA4 fires the page_view event immediately when a page loads. If you have any code or plugins that modify the page title after this event fires, GA4 could be sending the title of the previous page, then updating it when the actual title is set, resulting in the same param value being shown twice.

    To troubleshoot this, you might want to check the order in which things are loading on your pages. Consider firing a custom event after the page title is definitively set to ensure the correct page title is sent to GA4. You could also consider using a debugger to see when exactly the page_view event is firing and if it aligns with when the page’s title is set.

    If none of these work, there could be an issue with how you’ve configured GA4, so make sure to cross-reference with Google’s implementation guide to confirm you’ve set everything up correctly.

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