Pixels miss conversions. Ambit doesn't. The gap is normal.
You'll often find that Meta reports fewer leads or bookings than Ambit does. That's not a bug — it's the difference between client-side tracking (the pixel) and server-side tracking (Ambit's own count).
Why Meta undercounts
The Meta pixel runs in the visitor's browser. A pixel only fires when:
The visitor's browser allows tracking scripts to run
The pixel script loads successfully
The visitor doesn't have an ad blocker
The visitor doesn't decline tracking through their browser's privacy settings or operating system
Each of those filters out a chunk of visitors. The numbers Meta reports are reliably lower than the real ones — usually by 15–30%, sometimes more.
Why Ambit's numbers are more complete
Ambit counts a lead the moment the form is submitted on our servers, not the moment a tracking script fires in the browser. There's no ad blocker that can stop that count, and no privacy setting that filters it out.
So when you compare:
Pixel says 50 leads, Ambit says 70. The Ambit number is closer to truth.
Pixel says 10 bookings, Ambit says 14. Same story.
Which numbers to use for what
Use Ambit's numbers for understanding your actual funnel performance and ROI.
Use Meta's numbers for optimizing your ad campaigns. Even though the pixel undercounts, the data Meta does see is what its algorithm uses to learn. As long as the gap is consistent, the optimization works fine.
Closing the gap
There's no way to make a client-side pixel see 100% of conversions. The right approach is to know the gap exists, plan around it, and not let small discrepancies make you doubt the funnel.
Where to go next
How do I connect the Meta pixel to my funnel?
Which Meta events does Ambit track?