I set GA4 ecommerce tracking for my website and noticed there’s been a continual discrepancy where the GA4 purchase revenue was less than the total sales within Shopify.
In GA4, it says Purchase revenue = purchases + in-app purchases + subscriptions - refunds
On Shopify, total sales is calculated by:
Total sales=gross-discounts-returns+shipping+taxes+duties+fees
This has been the percentage difference when looking at Shopify’s total sales and GA4’s purchase revenue:
- December - 45.24%
- January - 8.5% difference
- February - 36.91% difference
- March - 14.29% difference
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