Retail media success hinges on giving brands what they truly need: measurable, incremental sales growth. This episode of Unlocking Retail Media with expert Mark Mannino—from VidMob, Amazon Ads, and Flywheel—focuses on strategic RMN packaging and measurement. Key takeaways include moving beyond simple ROAS to prioritize incremental ROAS and new-to-brand metrics. Retailers must clarify how they handle omnichannel attribution and utilize unique first-party data for both onsite and offsite targeting. To scale, smaller RMNs should adopt programmatic practices, like Private Marketplaces (PMPs), to attract demand without becoming commoditized, and all networks must operate with the primary rule: "first do no harm" to the core customer relationship.