This report was produced in partnership with SMG.
Executive Overview: The Paradigm Shift in Commerce Media
The advertising landscape is undergoing its most significant transformation since the dawn of digital programmatic. As the deprecation of third-party cookies looms and consumer behaviors become increasingly fragmented, brands are pivoting toward Retail Media Networks (RMNs) not merely as a supplementary channel, but as a primary pillar of their go-to-market strategy.
At the recent ADWEEK House Advertising HQ, a series of high-level commerce connection sessions—co-hosted with SMG—unpacked the complexities of this evolution. The discourse moved beyond the hype of retail media to address the practical, often difficult realities of measuring effectiveness, the nuance of grocery shopping psychology, and the untapped potential of the travel sector. For CMOs and media buyers, the message is clear: the future of advertising is not just about placing ads; it is about owning the "moment of intent," whether that occurs in an aisle, on a smartphone, or at 30,000 feet.
Detailed Chronology: Insights from the Frontlines
The sessions at ADWEEK House were structured to mirror the modern consumer journey, beginning with the physical point of sale and expanding into the broader ecosystem of lifestyle and travel.
1. The Battle for In-Store Leadership
The inaugural panel, "Choose Your Player: The Battle for In-Store Leadership," moderated by Ollie Shayer of SMG, featured a heavy-hitting lineup: Collin Colburn (IAB), Chip Harding (Simon Property Group), Austin Leonard (DG Media Network), and Britt Polihronis (RedMedia at Hy-Vee, Inc.).
The panel addressed the "phygital" challenge—how to bridge the gap between digital attribution and physical conversion. While retail media was born online, the vast majority of commerce still happens in brick-and-mortar stores. The panelists argued that the industry must move toward a more sophisticated understanding of "in-store media," which includes everything from digital signage and interactive kiosks to personalized mobile prompts that trigger during a shopping trip.

2. The Grocery Ecosystem: Orchestrating Connected Campaigns
In a fireside chat with ADWEEK’s Zoë Ruderman, Liz Roche of Albertsons Media Collective provided a masterclass in the complexities of grocery retail media. Grocery is unique in its frequency; it is the heartbeat of consumer routine. Roche emphasized that "connected campaigns" are the only way to succeed in an environment where the consumer journey is non-linear. By leveraging Connected TV (CTV) to build brand awareness well before the consumer enters the grocery store, and following up with targeted in-app promotions, brands can create a cohesive narrative that persists through the checkout process.
3. Media on the Move: The Travel Sector’s Ascent
The final session, "Media on the Move," moderated by SMG’s Sean Crawford, pivoted the focus to the high-value traveler. Featuring executives from WHSmith, Lyft Ads, Marriott Media, and Tripadvisor, the discussion highlighted why travelers are the "holy grail" for many advertisers. Beyond simple demographics, the travel mindset—defined by excitement, openness to discovery, and a willingness to spend—creates a psychological environment where brand receptivity is significantly higher than in traditional settings.
Supporting Context & Metrics: The Measurement Dilemma
A recurring theme across all panels was the tension between "available data" and "actionable intelligence."
The Metrics That Matter
In the world of malls and experiential retail, as Simon Property Group’s Chip Harding noted, foot traffic remains a foundational metric. However, it is no longer sufficient on its own. Advertisers are now demanding "attribution of incrementality"—a rigorous proof that a specific media placement directly caused a purchase that would not have otherwise occurred.
In grocery, the metrics are even more granular. Austin Leonard (DG Media Network) and Britt Polihronis (RedMedia) discussed the shift from vanity metrics (impressions) to behavioral signals. When a shopper interacts with a digital endcap or scans a QR code, that interaction provides a real-time data point that can be optimized instantly.
The Problem with ROAS
Perhaps the most provocative take came from Liz Roche at Albertsons. She challenged the industry’s obsession with Return on Ad Spend (ROAS) and Incremental ROAS (iROAS). Roche argued that these metrics are often manipulated by the methodology of the measurement platform itself, leading to a "false sense of security."

Instead, she advocated for a "holistic performance view." This approach requires brands to look at:
- Category Velocity: Is the brand growing faster than the category average?
- Customer Lifetime Value (CLV): Is the media spend acquiring high-value shoppers or one-time bargain hunters?
- Cross-Channel Halo: How does an increase in digital ad spend correlate with offline sales growth?
Official Statements: The Industry Consensus
The experts at ADWEEK House were unified in their call for greater standardization.
Ollie Shayer (SMG) highlighted that innovation in retail media is outpacing the tools available to measure it. "We are in an era where the infrastructure of commerce is being rebuilt in real-time. Brands that rely on legacy measurement will find themselves at a significant disadvantage compared to those embracing omnichannel, journey-based data."
Liz Roche (Albertsons) provided a sober assessment of the current landscape: "Measurement is not a silver bullet. It is a critical thinking exercise. If you are relying on a single number to justify your spend, you are likely missing the forest for the trees. We need to focus on how we impact the brand’s footprint in the physical store, not just the clicks on a screen."
Chris Norton (Marriott Media) underscored the sentiment regarding travel: "Travelers represent a captive, high-intent audience. But the opportunity is not just to sell them a product; it’s to provide utility throughout their journey. When we align our messaging with the traveler’s specific needs—whether that’s a snack in the terminal or a rental car at the destination—we transition from an advertiser to a service provider."
Future Outlook: The Next Wave of Commerce Media
As we look toward 2026 and beyond, three trends appear inevitable:

1. The Consolidation of Retail Media Networks
While there are currently dozens of RMNs, market forces will likely drive consolidation. Advertisers will eventually tire of managing fragmented APIs and disparate data silos. The networks that survive will be those that provide the most seamless integration into the brands’ existing marketing stacks.
2. The Rise of "Contextual Commerce"
The future of RMNs lies in context. It is not enough to know who the shopper is; we must understand what they are doing. This means delivering an advertisement for a premium coffee brand while the shopper is looking at coffee makers, or promoting a travel-size toiletry item while the consumer is booking a flight on a partner site.
3. Privacy-First Personalization
As regulations tighten and consumers demand more control over their data, RMNs are uniquely positioned to thrive. Because they possess first-party, deterministic data based on actual purchase history, they are immune to the privacy fluctuations that plague third-party data reliant channels. This "walled garden" advantage will make RMNs the most resilient segment of the digital advertising economy.
Final Thoughts
The evolution of retail media is not merely a technical upgrade; it is a fundamental shift in how brands build relationships with consumers. By integrating the physical and digital, focusing on holistic performance metrics rather than singular ROAS figures, and meeting consumers at every touchpoint of their daily journeys, brands can unlock unprecedented value. The sessions at ADWEEK House made one thing abundantly clear: the companies that master the science of commerce connection will lead the market for the next decade. The era of the "siloed campaign" is over; the age of the "connected customer" has officially arrived.