Here's what you need to know as a buyer:

If you run onsite retail media at a large retailer, vendors are starting to pitch you on "unified ranking" or "holistic page optimization". It sounds like a product update. It isn't. It's a decision about who controls your retail media stack for the next decade.

The shift is simple to state and hard to execute: instead of ranking sponsored and organic products in two separate systems, you rank them together in one — optimizing for the best outcome across both sides of the business.

For vendors who built their stack on traditional ad serving, that's not a feature release. It's a fundamental rebuild on different infrastructure: different data model, different decisioning engine, different relationship between media and commerce.  

- Criteo is calling it “Holistic Page Optimization”. Sherry Smith, President of Retail Media, has discussed it with Don Brett on The CPC View podcast as Criteo invests in a new infrastructure for ad serving and holistic, page-level optimization.

- Koddi is emphasizing the need for "unified decisioning that scores every product, organic and sponsored, through the same understanding of shopper intent, page context, and expected performance."

- Constructor says it "[unifies] organic and sponsored product rankings" so its system can "optimize for revenue and relevance across both surfaces simultaneously."   

- Particular Audience describes itself as a platform that "unifies proprietary large language powered search, hyper-personalisation, and sponsored product ad decisioning into a single ranking system."   

- At Pentaleap, we've spent the last five years putting what we call “unified ranking” into production at scale with The Home Depot, CVS, and Macy's and many others.

When the leading incumbents and multiple newcomers are converging on the same idea, that's not a trend. That's a new standard forming in real time. And honestly, it's great news for retailers, for brands, and for shoppers.

The key question for you as a buyer of retail media ad tech is no longer whether sponsored and organic should be ranked together. It's where in your stack that decision should live — inside your ad server, inside your search and personalization layer, or in an independent ranking layer between them.  

As a buyer, you're choosing between three very different architectures. It's a crucial decision that will shape your economics, your leverage with vendors, and how much flexibility you retain as the category keeps evolving.

‍

The old model made sense, until it didn't

The legacy retail media model gave retailers a fast way to launch Sponsored Products and get on the retail media train. But that train reached a dead end.

The visible symptom is relevance. A shopper searching for a vegan protein bar may see sponsored whey bars in the top slots, while the organic results correctly show only vegan options. Two systems, two standards of relevance, on the same page.

The deeper problem is structural. When sponsored and organic products live in separate systems with fixed placements, the page can never be optimized as a whole. Think of it this way: if a Sponsored Product generates more total margin than the organic product above it, it should take that spot. If it generates less, it shouldn't. The source of the margin, whether it comes from a media fee or a product sale, is secondary. What matters to the business is the sum.

Right now, that trade-off is not managed. The two systems do not talk to each other.

The cost is real. A large fashion retailer and Pentaleap customer found its Sponsored Products generated less than half the CTR and converted at less than 40% of the rate of adjacent organic products. When shoppers don't click, retailers earn neither ad revenue nor product sales. Both sides of the business suffer.

‍

Why the market is moving now

Three forces are converging.

First, retail media growth is no longer a given. Retailers are under pressure to find new high-margin revenue without weakening the shopper experience that drives the core ecommerce business. Unified ranking is becoming one of the biggest levers because it improves the economics on both sides.

Second, with Pentaleap's model gaining adoption among leading RMNs, the perceived risk has flipped. Sticking with the old model is starting to look riskier than moving toward a unified architecture.

Third, the wider vendor landscape is moving in the same direction. Criteo and Koddi are the loudest voices, but search and personalization specialists like Constructor and Particular Audience are converging on the same view: isolated sponsored product decisioning is no longer enough.

‍

What unified ranking means, and what it doesn't

One important note for buyers. There's no agreed definition for this new category yet. Everyone sees the same problem and the need to solve it, but "unified" gets used to describe quite different approaches.  

Koddi's "unified decisioning", for example, uses a semantic search system to improve sponsored product selection while keeping sponsored and organic decisioning in separate systems. While this is likely to yield real improvements, it just isn't unified ranking as we define it here.

In a true unified ranking model, organic and sponsored products compete within a single ranking computed by one system. That system considers shopper intent, product relevance, predicted click-through and conversion rates, product margin, margin from CPC bids, campaign eligibility, product availability, retailer rules, and media performance in a single decision.

The question itself changes.

Traditional ad serving asks: "Which sponsored product should fill this ad slot?"

Unified ranking asks: "Which product, sponsored or organic, should win this position to drive margin across both revenue sources?"

That's a fundamentally different operating model. It doesn't mean media wins at the expense of ecommerce. It means the two are finally evaluated through the same decision layer.

This is no longer theoretical. Macy's Michael Krans laid it out on the CPG Guys podcast (listen in at 34:22ff) with Sri Rajagopalan and Peter Bond: two ad servers, one ranking decision, mediated through Pentaleap's optimization layer. It's the same model Kathryn Lundstrom has written about in Adweek.

Do retailers lose control of their onsite ads now?

The opposite. Unified ranking gives you more control, not less, because one system now governs the full page instead of two systems negotiating around each other. Any layout running today can be reproduced one-to-one from day one: fixed ad units, static tiles, merchandising overrides, and merchant rules are all enforced through the same layer. And you control the pace. Start static, mirror your existing page exactly, and move toward dynamic placements gradually, on your own timeline.

‍

Results we see in production

We've now run unified ranking in production with multiple retailers by sitting on top of an incumbent ad server and turning its ad response into a unified ranking decision. The pattern is remarkably consistent: ad KPIs and ecommerce KPIs move in the same direction at the same time. CTR and ad revenue go up. Conversion rate and product sales go up. Both sides of the business win, on the same page, in the same test.

The architectural choice is the real decision

There will be many versions of unified ranking in the market, and they'll fall into three architectures.

Unified ranking as a feature inside the ad server keeps decisioning, demand, and campaign management bundled with one vendor. It works for retailers committed long-term to their current ad server and commercial model. In this model, the campaign UI, demand access, and decisioning logic stay tightly coupled inside one bundled system. The commercial model of retail media ad servers is built around keeping those three things bundled together. That limits the retailer's ability to add competitive ad servers, connect demand directly, or use omnichannel orchestration tools across onsite, offsite, and in-store.

Unified ranking inside search and personalization places the ranking logic close to the systems that already shape the shopper experience which can reduce latency. The trade-off: any future search provider change could affect both ecommerce and media, not ecommerce alone. Some search and personalization providers are also more recent entrants to retail media, so the depth of their ad serving capabilities (pacing, audience targeting, …), demand partner connections and integrations with omnichannel orchestration tools is worth evaluating carefully.

An independent unified ranking layer is the route we chose at Pentaleap: a layer between the ad server, search & personalization, demand partners, and orchestration tools, so retailers can swap any of them without rebuilding the architecture. The goal is to avoid lock-in and foster a more retailer-friendly economic model across the stack. The honest trade-off: we're another vendor in a crowded stack. For most retailers we work with, the flexibility has been worth it.

This is why unified ranking shouldn't be evaluated as a feature. It's an architectural decision that shapes interoperability, vendor dependency, and the commercial model behind your stack for years to come.

‍

The questions buyers should ask

When evaluating a unified ranking proposal, a short diagnostic clarifies what's on offer:

- Decisioning model: Are organic and sponsored products ranked together by one system, or in sequence by two?

- Demand access: How is third-party demand (Google, Teads, Skai, Pacvue, …) integrated, and what's the overall fee structure?

- Campaign UI flexibility: Which campaign management and orchestration tools are supported through API, and at what cost?

- Multiple ad server support: Can you connect a competing ad server into the unified ranking layer, or are you locked into one?

- Search provider independence: If you change search providers in the future, what are the implications for your retail media business?

The answers won't point to a single "best" vendor. They'll reveal which trade-offs each architecture asks you to accept.

‍

What comes next

For the first time, retail and media are growing in the same direction. The technology is here. The market is maturing. The old friction between ecommerce and media teams no longer must be the default. Unified ranking creates a model where shoppers see more relevant products, brands see stronger campaign performance, and retailers grow both sides of the business without sacrificing one for the other.

The question is no longer whether unified ranking matters. It's which architecture matches your business, and that choice will determine how much control you retain over the infrastructure powering your retail media business for years to come.

If a structured conversation about the trade-offs, commercial implications, or technical integration would help, our team has helped dozens of RMNs transition from traditional ad serving to unified ranking and is happy to share what we've learned.