Pixel, Conversions API and the Google tag: tracking in plain English
If the platforms can't see your results, they can't optimize for them, and you can't judge them. Here's what each piece of tracking does and how to check it.
Tracking is the least exciting part of running ads and the most important. Ad platforms learn from the conversions you report. If those reports are missing or wrong, the platform optimizes for the wrong people and your reports mislead you.
The Meta pixel
The pixel is a small piece of code on your website that tells Meta when someone views a page, submits a form or makes a purchase. You create it in Events Manager and install it on your site directly or through your website platform's integration.
The Conversions API
Browsers and privacy settings can block the pixel. The Conversions API, often called CAPI, sends the same events from your server or connected tools straight to Meta. Running both, with matching event names and an event ID so Meta can remove duplicates, gives a more complete picture. Many website and booking platforms offer a built-in CAPI connection.
The Google tag and conversion actions
On Google, the Google tag measures activity on your site, and conversion actions define what counts as success: a form submission, a phone call, a purchase. Each conversion action should match a real business result. Avoid counting page views as conversions, which makes performance look better than it is.
How to check it actually works
- Submit a real test lead or make a small real purchase on your site.
- In Meta Events Manager, confirm the event appears and shows both browser and server sources if you use CAPI.
- In Google Ads, check the conversion action's status and use Tag Assistant to confirm the tag fires.
- Make sure the lead also arrived where your team works it: inbox, CRM or booking tool.
Add UTM parameters
UTM parameters are tags added to ad links, such as utm_source=meta, so your analytics and CRM know where each visit came from. They're a useful cross-check against what the ad platforms report.
Common mistakes
- Counting the same lead twice because both a thank-you page view and a form submit are marked as conversions
- Different event names on different pages
- Tracking a click on the form button instead of a completed submission
- Launching before testing, then discovering a week later that nothing was recorded
Lesson 1 of the free training covers tracking as one of the four ad-ready checks.
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