Connected Commerce Measurement Guide

Learn how to connect retail media measurement to real growth—and stop chasing metrics that don't matter.

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About this guide

Commerce media spending is approaching $100B, but most brands can't confidently answer which investments actually drive incremental growth. The problem isn't a lack of data. It's fragmentation. Your retail media networks measure differently. Your teams use different scorecards. And last-touch attribution masks whether you're creating demand or just capturing it. This guide tackles the 25 most common measurement questions we hear from retail and CPG brands, agencies, and multi-location businesses.

What you'll learn

ROAS Is a Trap

‍Platform-reported ROAS can overrepresent loyal-buyer activity and mask true incremental impact. Different networks use different attribution windows, lookback periods, and offline-sales modeling—so identical ROAS numbers don't mean identical value. The solution: Move toward incremental ROAS, new-to-brand metrics, and unified modeling frameworks that put all networks on a level playing field.

Unified Measurement Unlocks Clarity‍

Most brands' data is scattered across seven RMNs, multiple DSPs, and internal systems. Before measurement can be useful, you need a shared data foundation with standardized taxonomy, consistent KPIs, and modern data pipelines that pull insights from every touchpoint. Once that foundation is in place, MMM, dashboards, and lift studies stop being reconciliation projects and start becoming decision tools.

Build Maturity in Phases, Not Overnight
The strongest teams advance measurement in five stages: Crawl (establish consistent reporting and shared KPIs), Walk (introduce unified dashboards with first-party signals), Run (add structured incrementality testing), Jump (bring in MMM and scenario planning), and Fly (layer in predictive modeling and ongoing optimization). Starting small and manual prevents measurement fatigue while building internal credibility.