
Loading summary
Marcus
Foreign welcome to a special edition episode of the Emarketer podcast, Behind the Numbers. I'm Marcus and today we have a special conversation from Emarketer Summit, Commerce Media Trends 2025 from May 9. Listen as E Marketer principal analyst Sarah Marzano and Google's head of retail Media, Sean McGahey discuss the rise of off site retail media advertising. Enjoy.
Sarah Marzano
Hi everyone. I'm back for a special sit down with Sean McGahey, head of retail media at Google. But first, to set the scene for our conversation. Today, more than 80% of the 60 billion spent on retail media is directed toward on site advertising. But the shape of that is evolving quite quickly. By 2027, we're projecting that one in every four dollars spent on retail media we'll shift to offsite channels. So Sean, welcome. It's great to have you here. I'm very excited to invite you to share what you're seeing from the front row perspective of how off site retail media is taking shape.
Sean McGahey
Thank you for having me. It's a pleasure to be here.
Sarah Marzano
Awesome. So something that I have been having a great time sort of covering and thinking about and writing about is all the factors that are driving the urgency and opportunity in off site retail media right now. But Sean, from your perspective, like what's top of mind in terms of why sort of now feels like a really instrumental moment in off site for retail media?
Sean McGahey
Yeah, sure, a few things. One is the fact that shopper journeys are very complex and that retail media networks need scale to reach those shoppers wherever they may be. And so that that need to use retail media to further influence shopping behavior requires off site to meet them in all the, all the various touch points that they have. I would also say competition is driving a lot of the interest in off site as there's, it feels like there's a new media network launching every day. And so you need to have as a network the inventory and the offerings to compete with the other places that those dollars could go. And so we see that driving a lot of off site activity. And then lastly, incrementality that ROAS is not enough in retail media as the industry has matured and ensuring that you're finding new buyers as a part of these campaign activations. And we're seeing offsite being a great channel to help drive improve out incremental sales in a retail media buy.
Sarah Marzano
Yeah, I love that. I feel like you hit on so many of the themes that we've sort of been coming back to throughout our programming today. Right. The top of mind need for scale as retail media networks look to continue their momentum, the finite nature of on site inventory and the need to reach customers beyond lower in the funnel. Right. Activations. So Google, for its part, owns some of the most critical moments in the shopper's journey. Just to keep us on on that topic. Right. Everything from search to YouTube. So how are you thinking about those critical moments, Right. Where you sort of have this pervasive kind of press presence and, and how does it influence your retail media strategy? Right. I think about a shopper in the context of a Google search versus a YouTube environment and this context feeling quite different.
Sean McGahey
Yeah, no, I'm happy to share. As we talk about the complexity of shopper journeys, one thing we are seeing on the Google side is that there's four behaviors that are consistent. So one, there is, there's searching behaviors that, that are in most every shopper journey. There's scrolling behavior, there's streaming, and then there's shopping. That's being incorporated across all of those four behaviors. And so we're using the insights and the knowledge that we have on those behaviors to influence how we're approaching retail media. And so for a searching standpoint, we're complementing sponsored product ads with off site ads on Google search and shopping. From a scrolling standpoint, we're leveraging our demand gen product that reaches scrollers on the Google discovery feed or when they're searching for their next video on YouTube or when they're scrolling through the YouTube shorts. And we're able to use that as an off site activation during that behavior when they're streaming. We announced at the new fronts earlier this week that retail audiences and conversions are coming to DV360, which reaches 98% of CTV households. And because we have our merchant center infrastructure and we have 45 billion product listings that update 2.1 billion times every hour, we're able to add shoppable inventory in all, all of those moments. And so we're really leaning into what do we know about consumer behaviors, what are shoppers actually doing and leveraging our platforms and our solutions to meet them where they are.
Sarah Marzano
Yeah, no, I love that. And I think we talk sort of ad nauseam in this industry about how the purchase funnel has collapsed or it doesn't feel as relevant in the linear way we used to look at it. But I like the framework that you've sort of set up that feels like it more accurately reflects sort of the multitude of activities that customers are engaging in on various digital surfaces at any point in time. And all the sort of nuance in terms of the opportunity to reach them in those moments which I really think is where the purchase journey is kind of evolving towards. You mentioned the announcements around DV 360, which I think was just earlier this week, which has happened since then. Google has been expanding its retail media capabilities quite quickly and to me that points to what feels like a really intentional product roadmap. So I'm curious what you're able to share about where sort of you see see both Google and the broader retail media landscape heading in the coming years and what role you think Google plays in that.
Sean McGahey
Yeah, I would say as we leaned into our product development, we didn't want to just build solutions because we could build solutions. We really wanted to take an assessment of what's going on in this market and how can we uniquely add value with what we have. And so some of the three things that we noticed is that one, in retail media there's a growing demand for media that actually performs. We're seeing a disconnect between the great roas that might be in a report and then the conversations that those same advertisers are having with the merchandising side of retail and where the JBPs and those conversations aren't as favorable as the retail media report is highlighting. And so making sure that we're helping retail media networks add media inventory that really moves the needle for whatever those objectives are are is one of the areas that we're leaning into from our products. Secondly, we know this is a very fragmented industry that the average brand is buying across six to 11 retail media networks. Each media network has about five to 10 different ad tech platforms that they use to activate and that we can't get to the next level of scale with that much fragmentation. And so we're building solutions in the ad tech products that the industry has been using for a while across our search as 360 solution DV360 as we mentioned, and even within Google Ads to reduce the fragmentation that we see in this market. And then lastly, measurement and that standardization of measurement, the great value of retail media is their measurement. And then when you interview advertisers, the thing that is most challenging for them is the retail media measurement, right?
Sarah Marzano
Absolutely.
Sean McGahey
We're looking at our solutions and say how can we use the measurement standards and approaches that digital marketers have been accustomed to throughout Google and bring retailer conversion data into that framework?
Sarah Marzano
Yeah, no, I think that's spot on because I think when you sort of look back at retail Media's relatively short history, it's really been fueled by a level of excitement and enthusiasm that really came to define its sort of first few years, right as retailers rolled out their offerings and we sort of figured out where the low hanging fruit was. But it feels to me like a consequence of retail media reaching the level of maturity that it's at today is that some of these sort of pervasive tensions around where and how measurements like roas are used and where they fall short or the difficulty when it comes to an advertiser's capacity to navigate a really disparate set of platforms are really sort of coming to a head. Right. And then in order to continue with momentum, it's really time to start figuring out some solutions to these issues which, which aren't new again. They've been bubbling under the surface for, for quite some time. It feels like this is sort of the moment to really start addressing them. On the topic of retail media being still a relatively sort of like nascent part of the digital advertising landscape, I think that retail media has come to be defined really by the dominance of a hand, a very small handful of players who capture the majority of ad spending. I would love to hear your perspective on where you see the biggest opportunities for newer or mid sized players to break through.
Sean McGahey
Yeah, happy to. So in my role, every retail media network in America is my customer. And when I'm talking to like some of the newer or the mid mid tier retailers, the thing I always tell them is you can't take the big guy's playbook and just copy and paste it to your business. Right? You have unique value ads within your data that you need to lean into. Like things like in store availability, like how do you lean into those opportunities and then also the expectation of you. And the fact that there is often a finite number of retail media networks that brands are going to choose requires you to outperform your competition to really get that next dollar. Like where someone else might lean more into the upper funnel because of the scale that that retailer has. If you don't have a similar scale, like you're going to have to really outperform them. Like the incremental roas that you're driving needs to, you know, outperform some of your competition. The way that a retail media campaign influences what's happening with merchandising needs to, needs to be stronger than what they might see with their competition. And so we really just lean into helping the, the networks and I really see the opportunity is approaching the unique value adds of the size of the retailer that you are. But competing with performance.
Sarah Marzano
Yeah, no, that makes a ton of sense and I think that's one of the most interesting things about the point that we're reaching in retail media today is we're going to start seeing finally a sort of like break off of this sort of like one singular playbook that is typically sort of the roadmap to launch. And we're going to see where really unique cohorts start to emerge, where hopefully retailers start to recognize what strength they have to really offer in the landscape and tailoring their solutions with that in mind. You mentioned measurement and I think something that you've said in the past is that the measurement to activation cycle needs to get tighter. Can you tell me more about what you think or what that looks like in practice?
Sean McGahey
Yeah, happy to. I think there is a big opportunity in real time bidding and optimization. When it comes to retail media. We often see flighted campaigns and like it's going to run from this time period to this time period associated with the seasonal event and even. And we're not really looking at the performance until the campaign flight is over. And there are opportunities to say hey, this is working. How do I make adjustments or increase my bids to gain more opportunity there that is not pervasively being activated across the industry. And so we see an opportunity there when it comes to integrating those signals into platforms like Google to where we can not only help from a reporting and attribution standpoint, but use our infrastructure to say hey, this is working. Let's increase our bids in our off site Google shopping campaign. And so we think that there will be more activations in that space to not just report and it's stagnant but like leverage the data in a more real time manner to drive results for the advertiser.
Sarah Marzano
Yeah, and I think that's, that's, that's spot on because measurement and sort of improving measurement isn't just about making it easier for an advertiser to really effectively measure the performance of campaigns across a set of retailers, but it's about being able to make decisions really, really quickly. Something I was talking about in one of the previous panels was the fact that like the last few weeks are a great example of the fact that consumer sentiment can change quite quickly, the economy can change quite quickly. And so where you're wanting to invest and make decisions also needs to be able to change quite quickly. But without really efficient, streamlined methods of measurement that are, that are trustworthy, it feels like that's never going to happen.
Sean McGahey
Yeah, I agree. And also I think there's a lot of behavior of taking traditional shopper approaches and just like applying them to retail media and that it can often miss a lot of real time opportunities like we highlight for our partners. Hey, this is trending on Google right now. Like we are seeing this, this area spike or this product is growing and it's difficult to meet that opportunity because of well this is already flighted and it's already in this plan and we can't make those adjustments. And so we think measurement and optimization towards that measurement and solutions that allow you to do that is actually going to get us more incremental sales in this space by not just making it stagnant, but making it actionable.
Sarah Marzano
Yeah, I'm curious if you would be willing to sort of dive deeper into some of what you mentioned around omnichannel attribution and the ability to bring in in in store inventory levels into that purchase journey. I think for me that that seems like an opportunity for retailers who maybe do most of their business in physical stores and therefore haven't had as much success scaling their on site retail media business. And, and what role can Google play in that?
Sean McGahey
Yeah, so the, one of the benefits and the value that we have is Google Maps in that often a lot. There's a lot of search behavior happening on Google Maps. We work with retailers to use their product feeds to identify what type of in store offerings that they may have or if the product that the person is searching is near them because of what's available in that, in that in store environment for the retailer. And so we're leaning into that like people may know it as local inventory ads but that is like a strong asset to not only support your online activations but to really help you drive the in store foot traffic and footfall connection there. But to really activate that one, you need to have that type of information in the product feed and then two, you need to be able to upload your offline sales data into platforms like ours so that we can measure, report and optimize to what is happening in store in real time.
Sarah Marzano
Yeah, no, I feel like I'm so glad we touched on this because the Maps is not even a surface that we had talked about yet. Right. That Google owns. And I think if you, I spend a lot of time in my, in my maps trying to figure out where I'm going and what the hours are and all these things. But I think you've also sort of teed up the opportunity there to incorporate MERCHANDISING inventory levels, category management into this retail media space and how that's already something that's quite important. But as we see see in store attribution become a larger part of this industry, the need for that is only going to grow.
Sean McGahey
As you know, I just have my third daughter and my Google search queries right now are like GMO free organic baby formula near me. Right. And when we partner with, you know, retail media networks, there's a lot of queries like that on Google for my off sites endpoint that will show up not only on Google search, but those ad placements will show up on Google Maps under specific campaign types. And so we just see it as a really big, ample opportunity to grow.
Sarah Marzano
Yeah, I can, I can relate to that. I think when you have a small child at home, some of those needs that arise, arise when they're really urgent. Listen, these, these chats tend to fly by and we are running up on closing time here, but I wonder if, looking ahead, if you could just leave us with sort of a short statement on what you're most excited about when you think about the future of retail media networks.
Sean McGahey
Yeah, a few things I think about. One, the truly realizing the opportunity of retail media when it comes to its ability to drive incremental sales, to increase personalization and to deliver retail measurement that people understand and they believe in, that changes marketing behavior. And so we're really looking forward to the opportunity to do that with both Google's media products and our ad tech products and our measurement solutions and leveraging AI as a, as like a more foundational underpinning of all these activations to increase the effectiveness and personalization of what we're doing in the space.
Sarah Marzano
Awesome. It feels like we're on the precipice of a very exciting time. I really appreciate you joining us to share just a little bit of what you guys are working on. I feel like we barely scratched the surface, but so much interesting stuff in the work. So thank you so much, Sean.
Behind the Numbers: The Rise of Off-Site Retail Media Advertising
EMarketer’s podcast, "Behind the Numbers," delves into the evolving landscape of digital media, providing marketers, retailers, and advertisers with critical insights and analysis. In this special edition episode titled "The Rise of Off-Site Retail Media Advertising," host Sarah Marzano engages in a compelling conversation with Sean McGahey, Google's Head of Retail Media. Released on May 29, 2025, this episode explores the shifting dynamics of retail media, the increasing prominence of off-site advertising, and the strategic innovations driving this transformation.
Host Introduction
Setting the Scene
Dominance of On-Site Advertising
Factors Driving Off-Site Growth
Leveraging Critical Shopping Moments
Adapting to the Evolving Purchase Funnel
Challenges with ROAS and Measurement
Real-Time Bidding and Optimization
Unique Value Propositions
Emerging Playbooks
Integrating Online and Offline Data
Practical Applications
Vision for Retail Media’s Future
Closing Remarks
Shift to Off-Site Retail Media: By 2027, a significant portion of retail media spending is expected to move off-site, driven by complex shopper journeys, competitive pressures, and the need for incremental sales beyond traditional ROAS metrics.
Google’s Comprehensive Strategy: Google leverages its vast ecosystem, including Search, YouTube, and Maps, to integrate retail media across various shopper behaviors, ensuring a cohesive and scalable approach.
Importance of Measurement and Optimization: Real-time data and dynamic bidding strategies are crucial for maximizing campaign effectiveness and adapting to changing market conditions swiftly.
Opportunities for Smaller Players: New and mid-sized retail media networks can carve out niches by utilizing unique data points and focusing on performance-driven strategies to compete with larger networks.
Omnichannel Integration: Combining online advertising efforts with in-store data through platforms like Google Maps enhances attribution accuracy and drives both online and offline sales.
Future Innovations: The integration of AI and advanced measurement standards will continue to refine retail media strategies, making them more personalized and effective.
This episode of "Behind the Numbers" provides a comprehensive overview of the current trends and future directions in retail media advertising, emphasizing the pivotal role of off-site channels and the strategic innovations spearheaded by industry leaders like Google. For marketers and advertisers navigating the digital media landscape, the insights shared by Sarah Marzano and Sean McGahey offer valuable guidance on staying ahead in a rapidly evolving market.