How do commerce media networks generate revenue for businesses?

Every retailer used to have one job: sell the stuff on the shelf. Now a lot of them are running a second business on top of that, more like a toll road than a store, charging any brand that wants a moment of a shopper's attention along the way. Walk into a gas station and the pump screen is running an ad for a grocery chain. Open a travel booking site and half the listings are sponsored. Fly somewhere and the free wifi asks you to watch an ad first. None of that is an accident, it's a new revenue stream built on top of a business that already existed.

Marketers are moving real budget into these networks, called commerce media networks, and money is flowing out of the marketing channels that used to get it. Whether you're deciding how much of your ad spend belongs here or you're a business weighing whether to build a network of your own, it helps to actually understand where this revenue comes from and why it's suddenly worth so much to build.

Key takeaways

• Commerce media networks make money by turning first-party data and owned properties, both digital and physical, into ad space that brand partners pay to use.
• Revenue mainly comes from four channels: onsite placements, offsite extensions, in-store and physical placements, and data and measurement products.
• These networks post far higher margins than the retailer's core business, since the ad inventory is already owned.
• The rise of commerce media is tied partly to the loss of third-party cookies, which pushed advertisers to lean harder on first-party data owners.
• For the businesses buying ad space, rising costs and fragmented platforms make campaign performance harder to manage than it looks from the outside.
• Revenue growth for the network doesn't automatically prove the ad spend is incremental for the brand buying it.

What counts as a commerce media network

Commerce media network is the broader term for what most people call retail media, and it's no longer limited to traditional retailers. (We go more into the difference between commerce media and retail media networks in this article if you want a quick primer.) Any business with first-party customer data and its own digital or physical properties, from consumer packaged goods marketplaces to travel media networks to financial services companies, can build one. Retailer data was the first version of this to scale. Now grocery chains, airlines, banks, and delivery apps are all realizing they're already sitting on the two things advertising needs: an audience and the data to describe it.

The four ways these networks make money

Regardless of the industry, most commerce media networks make money through the same four channels, they just weight them differently depending on where their shoppers actually spend time.

Onsite placements

This is the version people recognize first: sponsored product listings in search results, banner ads on a retailer's own site or app, and placements built into the digital shelf where people are already comparing products. Because the business already owns this space, it's usually the highest-margin and largest revenue stream in the whole network. This is also where true retail media networks come in.

Offsite extensions

Networks can also take what they know about their own shoppers and use it to place targeted ads on social media platforms, connected TV, and the open web. Third-party data used to handle this kind of targeting. With third-party cookies fading out, a company's own first-party data has become the more reliable way to find relevant audiences somewhere else entirely.

In-store and physical placements

Digital screens at checkout, signage near the aisle, and ads inside a company's own mobile apps all fall here. It's a newer piece of the mix, but it lets a business treat its physical stores as ad inventory the same way it already treats its website.

Data and measurement products

The fourth stream is less visible but often just as profitable: selling access to audience insights, purchase history trends, and closed loop measurement reporting, sometimes through data collaboration tools that let brand partners study results without ever touching raw customer data directly.

Why the margins run so much higher than traditional retail

Traditional retail runs on thin margins, typically somewhere around 3 to 4 percent once everything is accounted for. Advertising revenue from a commerce media network usually lands closer to 70 to 90 percent, because the business isn't buying new inventory or building new real estate to sell it. The website, the app, and the store already exist, so selling access to the customer signals sitting on top of them is close to pure profit.

That gap is exactly why so many companies outside of traditional retail are chasing this new revenue stream too. A high margin revenue stream that doesn't require touching the core business is a hard thing to pass up, especially when advertisers are willing to pay a premium to reach high intent shoppers at the moment they're closest to buying.

What this actually costs the businesses buying in

None of this is free money for the brand advertisers on the other side of the transaction. As more of the ad budget moves toward commerce media, a few costs tend to show up that don't make it into the retailer's pitch deck.

• Rising ad spend with no ceiling in sight. Networks tend to ask advertiser budgets to grow year over year, and the brand partners with the most leverage are the ones best positioned to push back.
• A different platform for every relationship. Amazon, Walmart, Instacart, and every other network run their own bid strategies, ad formats, and reporting, so managing several at once rarely feels like running one campaign.
• A skillset gap most teams underestimate. Optimizing campaigns here takes a different read on customer behavior than traditional programmatic advertising, and treating retail media like just another display channel tends to show up in campaign performance.
• Budget tied to relationships, not just bids. In a lot of categories, ad spend is increasingly linked to buyer relationships and shelf placement, which makes this feel closer to trade marketing than ordinary digital advertising.

Revenue growth for the network doesn't guarantee ROI for the advertiser

Here's the part that gets glossed over. A retailer can report record revenue growth from its media network and still leave a brand advertiser without a real answer to the one question that matters: did the ad cause the sale, or would that shopper have bought anyway? Closed loop measurement can show that someone saw an ad and then made a purchase. On its own, it can't tell you whether that purchase was incremental.

That distinction is easy to miss when a dashboard shows a clean line from ad exposure to purchase. The network's revenue and the brand's return aren't the same number, and they don't move together automatically. Brands need to be reading commerce media performance against their wider media strategy to truly leverage this channel as a profitable place for ad spend.

Where Prescient comes in

Commerce media networks are very good at showing brand partners what happened inside their own walls. What they're not built to answer is what would have happened without the ad, or how that spend is showing up across the full customer journey, including the offline sales a lot of these campaigns never get credit for. Some people will browse online, see your ad, and convert in store. These media networks can't track that. That's a measurement problem, and it's not one any single network is positioned to solve on your behalf.

Prescient's marketing mix model looks at commerce media spend the way it looks at every other channel: alongside everything else influencing revenue, using retail halo effects and base revenue to separate what a campaign actually drove from what was going to happen either way. If you're trying to figure out whether your retail media budget deserves to keep growing, book a demo and we'll walk you through how our platform can uncover the true impact of all your marketing efforts.

FAQs

How much of a retailer's total revenue actually comes from its commerce media network?

It varies a lot by retailer and category, but for the biggest players, advertising and membership income can account for a meaningful share of total operating profit even though the media network itself is a small slice of overall revenue. The reason it matters so much comes down to margin, not size: a small, high margin revenue stream can move the profit needle more than a much larger, low margin one.

What's the difference between onsite and offsite commerce media revenue?

Onsite revenue comes from ad space the business already owns, like its own site, app, or in-store screens, and it usually carries the highest margins because there's no outside inventory to pay for. Offsite revenue comes from using that same first-party data to place ads elsewhere, on social media platforms or the open web, and it typically costs more to run since the network is paying for space it doesn't own.

Why do commerce media networks have higher margins than a retailer's core business?

Selling products involves real costs: inventory, logistics, and thin markups. Selling ad space on a website, app, or store that already exists doesn't carry those same costs, so nearly every dollar of ad revenue flows straight to profit once the platform itself is built.

Is commerce media ad spend incremental, or does it just cannibalize budget from elsewhere?

It depends on the campaign, and this is genuinely one of the more debated questions in marketing right now. Closed loop measurement can confirm that a purchase happened after someone saw an ad, but it can't confirm the ad was the reason. Brands that want a real answer usually need to look at that spend alongside their full marketing mix, not just the network's own reporting.

How do retailers decide what to charge for commerce media ad placements?

Pricing usually comes down to demand for the placement, how high intent the audience is at that moment, and how much first-party data the retailer can offer to make targeting more precise. A checkout screen reaching someone mid-purchase is priced very differently than a banner ad reaching someone earlier in the shopping journey.

Do brands get anything from commerce media beyond the ad placement itself?

Often, yes. Many networks also sell access to audience insights, performance reporting, and data collaboration tools that help brand partners understand their shoppers beyond just the campaign results, though how much of that is bundled into the ad spend versus sold separately varies by platform.