Fix Duplicate Purchase Events in Shopify (GA4 & GTM)

How to Fix Duplicate Purchase Events in Shopify By Wahiduzzaman Sohan, Google Ads & Analytics Consultant  ·  Published 3 August 2026  ·  Updated 3 August 2026  ·  8 min read Key takeaways Two causes cover the overwhelming majority of cases: parallel tracking systems, and a reloadable confirmation page. GA4 does not deduplicate purchase events. Revenue […]