The identity problem RMNs can’t afford to ignore

by Anne Passon, Sr. Sales Director, Retail 4 min read April 10, 2025

Retail media's growth is outpacing its data readiness

Retail media networks (RMNs) are on track to capture over $128 billion in ad spend by 2028, growing nearly 25% year over year​. But behind this rapid expansion, RMNs face a challenge that could slow their momentum: they lack the complete picture of their customers.

Retailers sit on a goldmine of first-party data—loyalty programs, online purchases, and in-store transactions—but their customer view is often fragmented, incomplete, or entirely anonymous. Without a strong identity foundation, RMNs struggle to:

  • Scale advertiser reach beyond logged-in users
  • Seamlessly match audiences across channels (CTV, programmatic, social)
  • Deliver the precise targeting and measurement that advertisers demand

The reality? Data is only valuable if it’s usable. And right now, too many RMNs are leaving value on the table.

The identity challenge: If you can’t see it, you can’t monetize it

Retailers have two types of customers:

  1. Known customers: Logged-in or self-identified users with purchase history and identifiable attributes.
  2. Unknown customers: Shoppers who browse, purchase in-store, or check out as guests—leaving behind only partial or anonymous data.

Although many retailers have a loyalty program, it’s unlikely they are capturing a full view of all of their customers, especially outside of their four walls.

When retailers don’t know their customers, they can’t effectively:

  • Understand what messages will resonate with what audiences
  • Extend their audiences beyond their owned platforms
  • Provide advertisers with the reach and addressability they demand
  • Accurately measure media performance and prove ROI

But this challenge isn’t unsolvable—it’s an identity problem, and Experian is built to fix it.

The missing link: Clean, enriched, and connected data

Assuming your data is ready to activate is a costly mistake. Too often, RMN data is messy, siloed, and incomplete, making it difficult to deliver the precision and performance advertisers expect.

Experian flips the script—helping RMNs transform fragmented signals into a complete, connected picture of their audience.

Here’s how Experian helps RMNs go from fragmented to first-class

Clean and optimize

We organize messy customer data, removing duplicates and filling in gaps.

Enrich and enhance

Our insights add depth to profiles with demographics, behavior, and purchase intent signals. For example, an RMN may know a shopper recently bought a car seat—but not that they lease a luxury SUV. That auto data is critical to securing auto ad dollars, and it’s exactly the kind of insight Experian provides.

Expand and connect

Using digital identifiers like hashed emails (HEMs), mobile ad IDs (MAIDs), and connected TV (CTV) IDs, we help extend audience reach across every channel advertisers care about.

The result? A complete and addressable audience picture that RMNs can activate confidently—on-site and off.

We partnered with one of the largest RMNs in the world to overhaul its first-party shopper data ahead of industry changes. By anchoring its data to stable digital IDs, addressability skyrocketed by nearly 300%. That’s the Experian difference—turning guesswork into confidence.

Retailers who master identity will win the RMN race

In an increasingly competitive RMN landscape, identity isn’t optional—it’s everything. Advertisers demand scale, accuracy, and measurable impact. Only RMNs with a robust identity foundation will rise above the competition.

RMNs that prioritize identity resolution and data enrichment will:

  • Drive more revenue by increasing the size of their addressable audience
  • Keep advertisers engaged with better targeting and measurement
  • Capture RMN market share by offering scale and accuracy

Don’t just compete—lead.

Ready to transform? Experian will show you how

Fixing data inside the RMN ecosystem is just the beginning. In part two, we’ll cover:

  • Why RMNs should be activating their enriched first-party data across CTV, programmatic, and social.
  • Why off-site expansion is the future of maximizing revenue.
  • How Experian’s data and identity solutions power off-site activation.

Experian isn’t just part of the RMN conversation. We’re driving it. Let’s talk.


Connect with our team

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.


Latest posts

Cannes Lions 2026: What it takes for brands to become part of the culture

Every brand wants to be part of the culture. Few know how to show up without crashing the party.  The brands that get it right stay true to who they are, and the moments they create tend to stick long after the attention moves on. At Cannes Lions 2026, leaders from Alaska Airlines, Fetch, FreeWheel, Goodway Group, Grupo Bimbo, OAAA, PMG, Quan Media Group, Significant, The Weather Company, and Wpromote talked through what real cultural relevance looks like, from finding the right moments to keeping them alive long after the attention fades. Watch the conversation below to hear what it takes for brands to earn their place in culture. Watch the conversation How brands earn their way into cultural moments Build the strategy behind the creative A clear rationale helps bold ideas earn internal support and achieve the intended outcome. Make cultural relevance feel genuine A cultural connection lands when it reflects something people already care about, not when a brand forces it. Move quickly and stay true to the brand Teams create strong brand moments when they act on an opportunity without compromising the brand’s identity. Plan the second act Once attention drops, give people new ways to relive the experience and remain part of it. Read the early audience response Comments, shares, and other reactions can show whether an idea connects before campaign data offers a more complete view. Add value to the experience Brands earn attention when they give people something worthwhile, not when they simply place a logo in the moment. Featured partners Alaska Airlines – Eric Edge, Chief Marketing Officer Fetch – Emily Starer-Wallace, General Manager of Data Partnerships FreeWheel – Larry Allen, Vice President of Global Strategy, Data, Measurement and Addressable Goodway Group – Mike Wolk, Senior Vice President of Partnerships Grupo Bimbo – Catherine Berger, Vice President of Marketing Transformation and Services OAAA – Anna Bager, President and Chief Executive Officer PMG – Chad Stoller, Global Head of Media Quan Media Group – Brian Rappaport, Chief Executive Officer Significant – Jesse Unger, Co-Founder The Weather Company – AnneMette Bontaites, Vice President of Sales Wpromote – Deanna Cullen, Vice President of Media Investment Want more conversations like this one? Connect with us to learn more about how streaming media helps brands reach real people across every screen. This is one of several conversations from Cannes Lions 2026 on how brands can show up in culture with relevance that feels real. Subscribe to our newsletter to receive our next Cannes conversation, fresh takes on cultural relevance, and honest advice from industry leaders on how brands earn a real place in culture. Subscribe to our newsletter For more from Cannes Lions 2026, continue with another conversation in the series What it takes to move patients from awareness to care What commerce media can see beyond a single retailer What streaming media reveals about cross-screen viewing Contact us Latest posts

September 1, 2026 by Experian Marketing Services
Cannes Lions 2026: What streaming media reveals about cross-screen viewing

Watch leaders from Adobe DSP, FreeWheel, Madhive, Minerva, OpenX, and Pinterest at Cannes Lions 2026 discuss how streaming media connects viewers across screens.

August 20, 2026 by Experian Marketing Services
Healthcare marketing enters a mixed-identity world

Pharma marketing now runs across mixed-identity conditions. Learn how to keep DTC and HCP data separate while connecting signals across activation and measurement.