Case #002: The two channels that were claiming the same sale

Case #002: The two channels that were claiming the same sale
I ran the same offer on two sources at once — a native campaign and a search campaign — and summed their reported ROI. Native showed +30%, search showed +35%. On paper I was crushing it across both, total spend $2,100, total reported revenue $2,800. So I scaled both.

The bank balance disagreed. Real revenue was nowhere near the sum of the two dashboards.

Both platforms were claiming credit for overlapping conversions inside their own attribution windows. A user who saw my native ad, then later searched and converted, got counted as a win by both. I was double-counting sales and scaling on phantom overlap, pouring budget into two channels each taking credit for the other's work.

The leak: trusting platform-reported revenue and adding it up, when every platform attributes generously inside its own window and none of them know about each other. The sum of self-reported numbers is always bigger than reality.

The fix: the network's deduplicated payout report is now my only source of truth for revenue. Platform dashboards are for optimizing within a channel, never for measuring total profit. I reconcile everything against the single number the advertiser actually pays me.

Rebuilt against deduped revenue, I could see search was the real driver and native was mostly riding its coattails. I cut native back, scaled search. $1,900 spent, $2,950 back. 55% real ROI — measured once, by the only scoreboard that pays.

— The lesson: every platform claims the sale, but only the advertiser writes the check — measure profit against the deduped payout, never the sum of self-reported dashboards.