Retail Media vs Owned: Who's Actually Managing Your Budget?

Campaign

Retail media platforms hold your first-party sales data, sit right next to the buy button, and know it. That's exactly why they need managing like any other agency — not treated as an automatic priority just because they happen to sell your product. Here's how to split spend properly and keep retail partners accountable to your goals, not just theirs.

Retail media platforms hold your first-party sales data, sit right next to the buy button, and know it. That's exactly why they need managing like any other agency — not treated as an automatic priority just because they happen to sell your product. Here's how to split spend properly and keep retail partners accountable to your goals, not just theirs.

Why retail media gets an easy pass it hasn’t earned

Retail media platforms have a natural advantage in any budget conversation: they can point to your own sales data and say “this is where the customer already is.” That’s a real advantage — and it’s why budgets keep moving in that direction: EMARKETER forecasts US retail media ad spend rising to over $69 billion in 2026, making it one of the fastest-growing channels in the entire ad market. But fast growth isn’t the same as automatic deservingness. The retailer’s incentive is to grow spend on their platform; your incentive is the best return across your entire mix. Those two goals aren’t automatically the same thing, and it’s worth remembering which one you’re actually being paid to protect.

The case for owned media

Owned channels — your own site, email, organic social, CRM — don’t come with a media fee, and every improvement compounds because you keep the audience and the data. The trade-off is reach and speed: owned media builds slowly and rarely reaches new customers on its own. It’s the cheapest media you’ll ever run, but it’s not a full substitute for paid presence where your customers are actually shopping.

The case for retail media

Retail media puts you in front of a customer at the exact moment of purchase intent, with targeting built on real transaction data most other channels can only approximate. That’s genuinely valuable — but it’s also priced accordingly, and the reporting is entirely controlled by the platform selling it to you. It’s also worth knowing where that spend actually lands: EMARKETER’s retail media data shows Amazon and Walmart alone account for the large majority of the market, so “retail media” often really means a handful of dominant platforms setting the terms. Retail media earns its place in the mix; it doesn’t earn a blank cheque.

Getting the split right

There’s no universal ratio that works for every brand, but the principle holds everywhere: treat the split as a decision you make, not one the retailer makes for you. A workable starting model for most FMCG brands:

  • The majority of always-on budget in owned and brand-controlled channels — building an audience and data set that’s actually yours

  • A defined, capped share of budget in retail media — sized to genuine incrementality, not to whatever the retailer’s account team recommends this quarter

  • A hybrid layer where the two work together — owned content driving traffic that retail media then converts at the point of purchase, rather than the two competing for credit on the same sale

Managing retail partners like an agency, not a landlord

The relationship works best when you hold retail media to the same standard as any other agency you pay: clear KPIs, transparent reporting, and a genuine test of incrementality — not just correlation with sales that would likely have happened anyway. Are you asking your retail partner to prove incrementality, or just accepting the dashboard they hand you? It’s a fair question to keep asking — EMARKETER’s own analysis notes that a significant share of advertisers are already holding retail media budgets flat rather than increasing them, precisely because measurement and proof of incrementality haven’t kept pace with the growth story. A few habits keep this in check:

  • Request incrementality testing, not just attributed sales, before increasing spend

  • Benchmark retail media CPMs and returns against your other paid channels, not in isolation

  • Push back on budget increases justified only by “we have the data” — data access is a reason to test, not a reason to spend blindly

The bottom line

Retail partners sell your product and hold valuable first-party data — but you’re the one paying for the media, and that earns you the right to ask the same hard questions you’d ask any other agency.

FAQs

Should retail media always get the biggest share of the budget because it converts at the point of sale?

What's a realistic owned-to-retail media split?

How do you know if retail media spend is actually incremental?

Why treat a retail partner like an agency rather than a data partner?

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© 2026 Becky Tunstall Marketing