Guide How not to lose conversion data with Pixel, CAPI and Attribution on Meta

[Czaq]

I haven't noticed much knowledge about CAPI capabilities on this forum, so I'll try show you a short tutorial on how to improve your work with statistics in FB ads.

Few words from me...​

If you've ever stared at your tracker showing 40 conversions while Ads Manager insists there were only 22, you already understand the problem this guide is about. It's the difference between an algorithm that optimizes toward profitable users and one that's flying half-blind on the data it actually received. On paid social, the platform optimizes on what it sees, not on what truly happened - so every conversion that never reaches Meta or TikTok is a signal you paid for and then threw away.

Most people running social traffic still rely almost entirely on the browser pixel. A few years ago that was fine. Today it leaks badly, and the leak is getting worse. This is a walkthrough of why client-side tracking fails, what server-side tracking actually fixes, and how to wire it up so your attribution survives the trip from click to conversion - with the specific wrinkles that matter when there's a tracker sitting in the middle, which there almost always is in affiliate setups.

Why browser pixel leaks?​

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