The native connection only goes one way
Your ad platform's own pixel sends some data out, but it can't pull your real costs in, can't see conversions it didn't witness, and never gives you one place to compare platforms side by side.
Trapped cost

Cost stuck inside each platform
Spend lives in Meta, Google, and TikTok separately. Pulling it together by hand into a spreadsheet is slow, error-prone, and always a few hours out of date by the time you act on it.
Missed conversions

Conversions the pixel never sees
Ad blockers and iOS restrictions drop a big share of pixel events. The platform optimizes as if those conversions never happened, so your CPAs climb and the algorithm optimizes toward the wrong people.
Scattered data

No single source of truth
Three platforms, three dashboards, three different conversion counts. Without one unified view, you can't tell which platform is actually most profitable, or where to move the next dollar.