Olivia Kory, Chief Strategy Officer from Haus, walks through an 18-month review of 640 incrementality tests run by Haus to compare Meta’s Advantage+ campaigns with manual setups. She explains the shift from hands-on targeting to AI-led buying, why incrementality matters more than platform-reported conversions, and how Geolift holdouts estimate true lift without user-level data. The results show a strong overall impact from Meta, but mixed performance from Advantage+ versus manual, along with signs that mid-funnel optimization can change outcomes. She ends with practical cautions on interpreting automation results and the need to test by brand.Takeaways Incrementality testing helps separate real lift from conversions that would have happened anyway. Meta tends to deliver measurable lift quickly, though attribution settings change what you see. Advantage+ performs inconsistently against manual campaigns and can skew toward low funnel intent. Mid-funnel signal engineering may broaden reach and improve omnichannel effects, but needs validation.ChaptersLearn more about your ad choices. Visit megaphone.fm/adchoices