GA4 duplicate events happen when the same event is sent to Google Analytics 4 more than once, which inflates your event counts. The usual causes are GA4 installed both in your site code and in Google Tag Manager, tags that fire twice, and overlapping Create event rules. Inflated counts lead to inaccurate insights and poor decisions.
This guide is for anyone whose GA4 event counts look too high. I cover Google Analytics duplicate events: the common causes, how to identify them, and how to fix GA4 duplicate events.
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