How Facebook Ads Use Geo-Experiment for Incrementality

In this episode of Facebook Ads with Fexingo, Lucas and Luna break down how advertisers can use geo-experiments to measure true incrementality from Facebook ad campaigns. They walk through a real-world case study of a DTC mattress company that ran a geo-based incrementality test across 20 DMAs, comparing test markets against control markets over an eight-week period. Lucas explains the methodological challenges — from selecting matched geographies to accounting for spillover effects — and why geo-experiments are becoming essential in a post-iOS 14.5 world where individual-level attribution is broken. Luna pushes back on whether smaller advertisers can afford the time and budget, and Lucas offers practical guidance on minimum spend thresholds and test duration. The episode also touches on how platforms like Facebook and Google have built their own geo-lift measurement tools, and why marketers should sanity-check vendor results with in-house analysis. By the end, listeners will understand how to design a simple A/B geo-test that gives cleaner incrementality data than last-click or multi-touch attribution models. #FacebookAds #Fexingo #Marketing #DigitalAdvertising #Incrementality #GeoExperiment #Attribution #DTC #MattressCompany #DMAs #IOS14 #Measurement #LiftTest #AdEffectiveness #PaidSocial #MarketingMeasurement #MetaAds #BusinessPodcast Keep every episode free: buymeacoffee.com/fexingo