Ben Galvin, Sr. Director of Omnichannel Retail Sales & eCommerce at Monster Energy, leads digital commerce strategy. Ash McMullen, Head of eCommerce at Advantis Health, focuses on measurement and rapid testing. Donna Sharp, Managing Director at MediaLink, researches retail media and measurement. They discuss retail media's growth, MMM challenges, data gaps, real-time vs quarterly cadence, and blending MMMs with faster signals and AI.