Stand up creator ROAS tracking in 5 steps

ROAS = revenue / spend. Build the measurement before launch:
— Unique code per creator, never a shared one
— UTM the bio link AND the swipe-up separately
— Set a 7-day click / 1-day view window, document it
— Baseline: capture 2 weeks of organic sales pre-campaign
— Holdout: leave one audience segment unexposed

No baseline and no holdout means you are crediting the campaign with sales you would have made anyway.

So what: the holdout is what separates measured lift from a vanity ROAS.

Benchmark: incremental ROAS sits 20-40% below last-click ROAS (n=48 holdout tests).