Myth: A profitable native test means you can scale it 10x.

Myth: A profitable native test means you can scale it 10x.
Wrong. Native quality collapses as you scale into the long tail of garbage supply. Screen before you scale:
— Identify what % of your test profit came from 3 placements vs the whole list
— Project what new inventory you'll buy at 10x — it's the stuff the algo avoided at 1x
— Cap scaling per-placement, not account-wide, to avoid diluting into junk
— Re-baseline CPA after each 2x step; expect erosion, plan the ceiling
— Keep a frozen control budget to detect when scaling kills efficiency
Supposedly winners scale linearly. They don't — native is front-loaded with the only good supply that exists. Beyond it lies the chumbox. Did your test prove the channel works, or just that three good placements exist?