Without conversion tracking, campaigns can be optimized for clicks but not for outcomes — and AI Optimization has nothing to work with.
Three supported methods
- Server-to-server (S2S) postback — the most reliable. Your system calls our postback URL when a conversion happens.
- Tracking pixel — fired from the conversion page.
- Server-side tracking — for setups where neither of the above fits.
How S2S works
- Pass
{CLICK_ID}in your click URL, so your tracker receives it. - Store it against the visit.
- When the visitor converts, call our postback URL with that click ID.
- The conversion is attributed to the click, and to the placement it came from.
The single most common failure is {CLICK_ID} not being passed in step 1. Without it, there is nothing to attribute a conversion to, and the postback silently does nothing. If conversions read zero while clicks look healthy, check this first.
Naming conversion events lets you report cost per specific event — see Reports and analytics.
Related: Tracking macros · Conversions aren't being recorded
Sep 7, 2026