Ecommerce Evolution

Most DTC brands are making million-dollar channel decisions based on attribution data that's fundamentally wrong. Olivia Kory — CSO of Haus and the incrementality expert Brett references on stage more than almost anyone — breaks down what it actually takes to know if your ads are working. Spoiler: if you've been writing off YouTube based on MTA, you owe yourself a retest.Inside the episode:Why YouTube's true ROAS is 3.4X what the platform reports — and how Haus's 190-test study across 74 brands proved it (plus why your D2C numbers alone are only half the picture)The right time to start incrementality testing — it's not when you're huge, it's when your business gets complicated enough that turning off ads won't give you a clean answerHow StockX went from barely spending on YouTube to making it their #2 acquisition channel — by running geo holdout tests and acting on the resultsWhy Meta's optimization might be too good — and how brands like Jones Road are improving their iROAS by making changes that look worse