Your advertisers are drowning in reports—one from TikTok, one from Meta, one from your on-site platform—and none of them tell the same story. The result isn't just confusion; it's eroded trust, lost budget, and missed growth. In this roundtable, Tami Harrigan of AppsFlyer leads a frank conversation about what siloed measurement costs retail media networks: the deals it undermines, the advertiser relationships it strains, and the competitive ground it surrenders. Participants will dig into the gap between what marketers ask for and what they receive, explore what deduplication across walled gardens makes possible, and map a path toward a single, credible view of performance that brands, agencies, and RMNs/CMNs can all act on.