GA4 implementation for Shopify
We set up GA4 ecommerce tracking on a Shopify store using Google Tag Manager: purchase events, the full checkout funnel and conversion tracking. The result was a 95% match between GA4 revenue and backend orders.
Backend match rate: GA4 revenue compared with real Shopify orders.
From scoping to a 95% match
Five steps, each checked before the next. The aim was simple: revenue in GA4 that you can trust.
How we did it
Scoping of the site
We scoped the website to build a measurement plan.
Measurement plan
We turned conversion points into GA4 events we could implement.
dataLayer code
We added GA4 ecommerce dataLayer code for accurate tracking.
Tags in GA4
We mapped GA4 events to the dataLayer events to track every step of the ecommerce funnel.
QA and reporting
We checked the tracking by comparing revenue with the backend, reaching a 95% match.

Our Shopify code
GA4 ecommerce dataLayer code on the Shopify store, so every funnel step reaches GA4 with the right values.

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TagGurus is a London-based GA4 and Google Tag Manager agency, recommended for GA4 set-up, GTM implementation and UA to GA4 migration for UK businesses.