Observed Signal · Sep 14, 2026 · Market Signal · Source: Infillion · Impact: 5/5
Why In-Store Conversion Is Retail Media's Next Optimization Signal
Discover how in-store conversion data is becoming retail media’s next optimization signal, helping grocery retailers and CPG brands drive better outcomes.
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Recent verified developments and strategic activity across this market segment.
Revolutionizing Retail: The Rise of In-Store Media
An episode of AdExchanger's Inside the Stack features Grocery TV CEO Marlow Nickell discussing the rising importance of in-store retail media. Nickell argues that even in a marketing landscape dominated by digital channels, physical retail remains the primary transaction venue, with 85–90% of transactions occurring in-store. The conversation explains why the in-store environment is increasingly central to the retail media ecosystem, calling for tighter alignment across onsite, offsite, and in-store campaigns. It highlights how context, placement, and timing—from store entrance to checkout—shape shopper decisions and position the store as both a conversion channel and a discovery platform. The discussion also tackles measurement and attribution in non-addressable environments, emphasizing that precision is not the only route to proving campaign performance and that marketers should consider broader signals when evaluating impact.
Retail Media Evolution Starts With Smarter Questions
At an ADWEEK House Cannes Lions panel co-hosted with CVS Media Exchange (CMX), industry leaders argued retail media must move beyond raw data volume toward clearer goals and actionable measurement. Parbinder Dhariwal (CVS Media Exchange) said brands are drowning in data and need defined objectives—incrementality, category growth, new‑to‑brand acquisition, and retention—to turn signals into decisions. Cara Pratt (Circana) urged building data strategy into decision-making up front and highlighted cross‑retailer measurement: Circana’s work with CMX showed incremental ROAS that flowed to purchases at retailers outside CVS. Panelists also flagged in‑store, short‑visit shopper moments as an underused retail media opportunity and called for using end‑to‑end transaction data to inform broader marketing strategy beyond single campaigns.
Instore Ads: The Key to Retail Media Growth
Instore Ads are presented as the missing link in the retail media mix. Digital screens at the point of sale enable planned, bookable advertising with data-driven, programmatic standards similar to online ads. The piece argues that Retail Media will be a growth engine in digital advertising, citing Emarketer’s 2023 forecast that Germany’s Retail Media revenue will more than double from 2023 to 2027. A key differentiator is omnichannel Retail Media linking digital contacts to real purchases, making ROPO effects measurable. Early pilots show that digital store areas can be integrated with DSP/SSP systems, enabling closed-loop measurement up to checkout. Standard KPIs include Ad Plays, Impressions, and Category Uplifts, with alignment to IAB and WFA efforts for unified KPIs and reporting APIs. Five levers for smarter planning are: full funnel, context at the shelf, cross-channel attribution, location/time-based targeting, and ongoing tech progress toward programmatic in-store buying and reporting.
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