GapFill: GA4 Server Tracking
- Pricing
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Free plan available. Usage charges apply. Free trial available.
- Rating
- 0.0 (0 Reviews)
- Developer
- ULTRO Inc.
Featured images gallery
Find orders GA4 didn't track and send them from the server. Keep GA4 revenue close to real sales.
GA4 misses purchases when ad blockers, browser privacy settings or closed tabs stop the tag, and it never sees in-app checkouts in AI assistants or social apps. GapFill compares your orders with GA4 and shows what's missing by channel, source/medium and payment method. Orders still missing after 26 hours are sent to your GA4 property via the Measurement Protocol, with the GA4 client ID kept at checkout. Recurring orders, refunds and cancellations are optional. Nothing is sent until you approve.
- Report of orders missing from GA4, by channel, source/medium and payment method
- Sends only orders GA4 didn't track, matched by transaction ID
- Covers in-app checkouts in AI assistants and social apps, with their source
- Optional: recurring orders, refunds, cancellations and other channels
- Nothing sent until you approve, consent handling, auto-stop if IDs stop matching
Languages
English and Japanese
Works with
- Checkout
- Google Analytics 4
Categories
Customer behavior
Marketing and sales
Estimate your monthly charges
Rounded up to the nearest dollar
Events sent to GA4
Pricing
Choose the plan that best fits your business.
Free
Free
Features
- Missing purchases report
- Breakdown by channel, source and payment
- No sending to GA4
Standard
$19 / month
Plus usage charges
Features
- Missing purchases report
- 200 recovered purchases/month included
- In-app checkouts (AI and social)
- Nothing sent until you approve
Monthly usage tier
Cost per unit
First 200 Events sent to GA4
Free
201 to 1,000 Events sent to GA4
$0.05
1,001 to 5,000 Events sent to GA4
$0.03
5,001+ Events sent to GA4
$0.02
Each tier's cost per unit only applies to usage within that tier
14-day free trial
All charges are billed in USD. Recurring and usage-based charges are billed every 30 days. See all pricing options
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Support
App support provided by ULTRO Inc..
Resources
Developer
Launched
October 15, 2026
Data access
This app needs access to the following data to work on your store. Learn why in the developer's privacy policy .
View customer data:
Device and activity data
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Device and activity data
Geolocation, IP address, browser and operating system, browsing behavior, client ID cookie
View staff and contributor data:
Store owner
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Store owner
Name, email address, phone number, physical address
View and edit store data:
Customers, products, orders, store analytics
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View customers
Browsing behavior, customer data
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View products
Products, collections
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View orders
All order history for the last 60 days
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Edit store analytics
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