GapFill: GA4 Server Tracking

GapFill is a Shopify App developed by ULTRO Inc. that helps ecommerce merchants send purchases missed by GA4 to GA4 from the server. It aims to keep GA4 revenue close to real sales by identifying and sending orders that GA4 didn't track due to various reasons like ad blockers, browser privacy settings, or in-app checkouts. The app compares orders with GA4, highlights missing data by channel, source/medium, and payment method, and automatically sends them to the GA4 property via the Measurement Protocol after 26 hours. GapFill also ensures that the GA4 client ID is retained at checkout, and merchants have the option to include recurring orders, refunds, and cancellations. However, there are not enough reviews to analyze at the moment.