In this episode, Mike Ryan and Chris dive into the fundamental issue plaguing advanced performance advertisers: the lack of data integrity between ad platforms and a retailer’s backend systems. Why are sophisticated retailers taking optimization decisions on ad platform data when their final bottom-line evaluation comes from a different source? Mike calls this the "optimization gulf".The hosts argue that this disconnect is a major tactical issue that is driving platforms like Google and Meta to pursue cross-channel solutions to regain trust.Key discussion points include:The Single Source of Truth (SSOT) Problem: Why using last-click attribution and optimizing within channel silos led to platforms taking 100% credit for the same purchases.The iOS 14.5 Inflection Point: How Apple's anti-tracking policies broke Meta campaigns, leading to the rise of "magic pixels" (Triple Whale, Northbeam) to fix reporting.Marginal ROAS vs. Average ROAS: Why optimizing only for average ROAS is a "massive flop" and why you need to understand the concept of marginal return to avoid spending beyond your optimal point.Google's Contradiction: We break down Google's claim that its bidding system (PMax) finds the cheapest conversion across all networks, and the subsequent contradiction of why the performance of those individual channels often looks bad in segmented reports.About smec (Smarter Ecommerce): At smec - Smarter Ecommerce, we specialize in transforming business goals into optimized ad campaigns. With over 16 years of experience in Google & Microsoft Ads, our intelligent software and expert services help retailers achieve superior results. We're committed to giving you the tools and insights needed to stay ahead in the ever-evolving world of digital advertising. Make sure to follow smec - Smarter Ecommerce for more performance marketing insights: smec - Smarter Ecommerce: https://www.smarter-ecommerce.com LinkedIn: https://linkedin.com/company/smarter-ecommerce-gmbh Newsletter: https://smarter-ecommerce.com/en/newsletter/ Instagram: https://www.instagram.com/smarterecommerce/