Retail media creative specs, rules and production tips

Retail media gives brands a direct line to high-intent shoppers. It also hands creative teams a workload most of them weren't built for: a high volume of assets for multiple networks, every month, each with its own rules. No wonder so many teams already feel stretched to breaking point.

Adding more people rarely fixes it. The better fix is a system that helps creative teams get the specs right, stay on brief and hold quality as volume climbs.

Most retail media articles focus on where to buy and how to bid. This guide covers what happens after that decision: the creative assets teams need to produce at scale and how to simplify that process.

The budget moved. The teams didn't keep up.

The case for retail media is no longer in question. eMarketer projects US commerce media ad spending will reach $142.07 billion and account for 23.9% of all digital ad spending by 2030. It also forecasts that Amazon's retail media revenues alone will exceed $75 billion by 2028.

But spending charts hide what happens behind the scenes. When budgets flood into a dozen retail media networks, the creative burden doesn't grow linearly. It explodes.

Each network has its own ad formats, ratios, character limits and content rules. Each placement behaves differently. Retail media assets also need constant refreshing, because ad fatigue quickly chips away at creative performance.

Multiply networks by placements by variants by refresh cycles and you get the real work behind retail media advertising: a production problem measured in thousands of assets.

Many brands still plan retail media around the media buy, then ask their creative teams to keep up. That gets the order wrong. Retail media is a creative production problem with a media budget attached, not the other way around. For the bigger picture, our roundup of advertising creative trends is a useful primer.

4 jobs every retail media asset has to do

Retail media creative works in advertising's most hostile environment: the moment of purchase, surrounded by competitors, in front of a task-focused shopper who's moving fast.

Many brands optimize for one or two of these jobs. If you don't account for all four from the start, performance suffers.

1. Sell, don't impress: Capture attention quickly and give shoppers a reason to buy. Think legible, product-forward creative that turns attention into "add to cart."
2. Win attention fast: In a piece for The Drum, Co-op's Anthony Jackson pointed to research putting the in-store moment at around one second in a convenience store and just 0.4 seconds in a supermarket. Focus on a clear one-second pitch and keep the creative ruthlessly simple.
3. Work with the sound off: Many video placements start muted or don't support audio at all. The product, message and branding should be clear from the visuals and on-screen text alone.
4. Sequence products deliberately: In multi-product formats, position matters. Instacart says shoppers are most likely to engage with the first product that appears in a shoppable display ad.

Olivia McCullagh, Retail Media Lead at IAB UK, explained in the same Drum piece why purpose-built creative matters more than ever:

With stronger evidence linking creative to performance (and AI driving greater uniformity), distinctive, context-aware work is becoming the key differentiator.

Olivia McCullaghRetail Media Lead, IAB UK

Network by network: A quick primer

Today's top retail media networks may look similar from the outside, but their creative requirements vary widely. Specs change often, so always confirm the live requirements for your exact placement before production starts.

Here's a closer look at six major platforms, popular ad formats and what creative teams need to consider.

1. Amazon Ads

Amazon's advertising services brought in $17.2 billion in Q1 2026. That scale makes it impossible to ignore.

Sponsored Products video: According to Amazon's own guide, campaigns with video see 67% higher click-through rates (CTR) and a 9% higher conversion rate than campaigns without it. For the 20% of shoppers who watch beyond five seconds, CTR jumps eightfold, and those viewers are twice as likely to buy from that brand within seven days.

The rules are strict. Videos must run at least seven seconds and don't support audio. The product should fill at least half of the frame, and blurry frames, slideshows, letterboxing, excessive motion graphics and talking-head videos are all out.

Sponsored Brands video: Amazon's specs call for videos between 6 and 45 seconds (20 seconds or less highly recommended) in a 16:9 ratio only. By default, these videos always start without audio.

What this means for creative teams: Make the product dominate the frame, focus on features and use and make sure the message works entirely without sound. Our Q&A on how to advertise on Amazon with former Amazon ad leaders goes deeper on platform craft.

2. Walmart Connect

Walmart Connect reaches approximately 150 million US customers every week across digital and physical touchpoints. Its CES 2026 update shows how quickly the network has expanded beyond sponsored search.

Walmart's own Automated Creative Generator can reduce advertisers' median creative production time by up to 80%, according to the same update. Read that as a signal from the network itself that creative volume is the bottleneck.

Sponsored Videos run between 5 and 45 seconds. Walmart Connect is also pushing further into CTV, noting that adding Walmart Connect CTV or VIZIO to linear TV buys reached audiences three-quarters of whom weren't reached through linear TV alone.

What this means for creative teams: Front-load the product and message, because there's little room for a slow build. The same campaign may also need separate creative for Walmart's CTV and other environments.

3. Instacart

Instacart calls its network the largest grocery ad ecosystem, reaching 55+ million consumers across 100,000 storefronts on Instacart Marketplace plus 310+ retail media networks and popular marketplaces.

Its shoppable display ads feature a carousel of pinned products. Because shoppers are most likely to engage with the first product, Instacart recommends pinning your highest-performing, most widely available item first.

What this means for creative teams: Don't simply lead with the newest SKU or the prettiest pack shot. Choose the product most likely to perform and be in stock across retailers.

4. Kroger Precision Marketing

Kroger Precision Marketing (KPM) uses first-party retail data from 60+ million US households to power targeting and measurement across its retail media network.

KPM publishes separate creative specs and policy documents for each format, and some of its display ads can run with or without added Kroger branding.

What this means for creative teams: Build to the exact placement and template, and check which brand elements the format already handles before you bake them into the artwork.

5. Roundel

Roundel uses first-party data from 100M+ Target Circle members to reach and understand Target shoppers.

The network spans several buying and creative models. Display runs as a managed service across Target properties and 150+ premium publishers, programmatic is self-service through your own DSP and social spans Facebook, Instagram, Pinterest and Snapchat.

What this means for creative teams: Confirm the placement and service model before production starts. A Roundel campaign may need different builds for Target.com, external publishers and social platforms.

6. Criteo

Criteo isn't a retailer-owned media network. Instead, it's part of the infrastructure connecting the wider retail media ecosystem, with 4,000+ brands and 200+ retailers using its retail media solutions worldwide.

Through Commerce Max, you can plan, buy and measure ads across hundreds of retailers and premium publishers from one place. That reduces platform fragmentation, but not creative complexity. For sponsored products, for example, Criteo uses the creative from the retailer's organic product listing.

What this means for creative teams: Centralized media buying doesn't remove production work. Your product listings and imagery need to be strong at every retailer, and you may still need retailer- and placement-specific assets.

Why fragmentation is now an industry problem

Perhaps the clearest sign of how costly fragmentation has become is that the industry is trying to standardize it.

In January 2026, IAB Europe released its Flexi Ad Sizes Guidelines, created in collaboration with Tesco Media. The guidelines recommend four flexible aspect ratios for static display ads, with the aim of faster activation and fewer custom builds.

Until standards like these are widely adopted, brands still have to manage the fragmentation themselves, ideally with a system for content localization and versioning rather than heroic manual effort.

On-site, off-site and in-store have different requirements

Retail media creative needs to work across three very different environments:

• On-site retail media: Appears on a retailer's own digital properties, such as its website or app.
• Off-site retail media: Uses retailer data to reach shoppers on external channels, such as social platforms, publisher sites and connected TV.
• In-store advertising: Reaches shoppers inside physical stores through digital screens and other in-store placements.

The challenge isn't only adapting creative to each environment. It's making those experiences feel connected.

Stacy Gratz, Revenue and Growth Director at Tesco Media, calls this "compound creativity," meaning consistent, context-based storytelling across in-store, online and offsite. As she told The Drum, "When creativity compounds, impact multiplies."

Each environment reaches shoppers in a different context, though, so the same creative won't work equally well across all three:

Treating retail media as a single channel makes it easy to miss these differences. A better approach is to build creative for each environment. In that sense, retail media is as much an omnichannel design challenge as a media-buying one, and it's closely tied to how your brand shows up in DTC.

What effective retail media creative looks like

Strip away the network differences and the assets that perform share a short list of traits. Here's what to double-check before your campaigns go live.

1. The first frame does the work

Assume the shopper sees one frame and nothing else. The product, brand and reason to click should all be clear immediately.

For many teams, that means flipping the usual creative hierarchy, which often builds toward a reveal.

2. The product is unmistakable at thumbnail size

Shrink your asset to thumbnail size and look at it on a phone. If the pack isn't identifiable, go back to the drawing board.

Category cues often matter more than brand cues here, because shoppers scan for the shape and color of what they're looking for before they read anything. Strong packaging design does a lot of this work for you.

3. You make one strong, clear claim

Strong retail media assets carry a single message well. Pick the one claim most likely to trigger an "add to cart," whether that's price, format, a new variant or a benefit. Then let everything else go.

5 failure modes that weaken retail media creative

The same production pressures keep showing up in enterprise teams, and they create predictable problems in retail media.

Here are five failure modes to watch for, plus the practical fix for each:

The last failure mode can be the most damaging. As teams produce more variants under tight deadlines, small inconsistencies creep in. Over time, they weaken brand recognition and trust.

The broader lesson is to design for the specific medium and platform, and to back that work with an operating model that holds quality and consistency as volume grows. Our guides to designing high-performing ads and A/B testing your designs are good next reads.

The always-on refresh problem

Retail media creative often stays live for a long time. However, as products, offers and performance shift, you need to update, test and refresh your assets.

Two things make this difficult. First, seasonality and peak moments like Black Friday and Cyber Monday can make asset demand spike. Second, repeated exposure to the same ad throughout the shopping journey reduces its effectiveness.

That makes measurement part of production. Your creative and marketing teams need to know which variants are still performing, which are tiring and where to iterate next. Creative performance benchmarking and data-informed creative decisions help guide this process and keep performance marketing quality high.

The operational challenge is keeping that cycle moving week after week. That's why some brands supplement their in-house teams with ad creative agencies, creative performance partners and packaging design agencies.

How to brief retail media creative

Retail media creative depends heavily on context. The same idea may need to work across different placements, formats, shopper missions and retailer rules, so a generic campaign brief usually isn't enough.

A useful retail media brief gives the creative team everything it needs to build for the exact environments you're targeting. Five details belong in every one of these creative briefs:

1. The exact placement, not only the channel: "Amazon" isn't a brief. "Sponsored Products video, sound off, appearing in these search placements for these terms" is.
2. The competitive context: Consider what will sit next to this asset on the page. A creative decision that looks bold in isolation can disappear in a grid of similar packaging.
3. What the shopper is trying to do: Someone searching a category term has a different goal from someone reordering a familiar brand. The creative should reflect that.
4. Every required variation upfront: Specify the sizes, ratios, languages, products and other versions you'll need before production starts. This gives the team a clear variant matrix and avoids late-stage additions.
5. Refresh expectations: State whether this is a one-off campaign or the first in a rolling series, because that affects how modular and reusable the creative should be.

Getting these details into the brief prevents many of the production problems covered earlier.

How to produce compliant variants at volume

[WISTIA: custom ai models wistia video]

Once you accept that retail media is a production problem, the question becomes how to produce hundreds of on-brand, high-quality variants at speed. Three elements need to work together.

1. Variant automation

Producing every size, ratio and placement variant by hand is where budgets and timelines die. Automated ad creative versioning turns one master concept into the full matrix of network-compliant variants. For inspiration, see these AI ad creative examples.

2. A brand system that travels with every asset

Automation without a strong brand system just means your team produces off-brand work faster.

Brand Brain, Superside's AI context engine inside our Superspace creative management platform, is built to solve this. It carries your guidelines, feedback and past work into every brief and checks deliverables against them, so the hundredth asset is as on-brand as the first.

3. Custom AI image models for product imagery

Custom AI image models are the third piece. Superside builds custom brand models on leading third-party tools, trained on your brand's visual identity and product images to change the economics of shelf-ready imagery.

Based on Superside's internal data, these models deliver 10x faster image creation, 75% less time per image and 85% cost savings per image.

For consumer packaged goods (CPG) brands, that makes it much easier to supply every retailer with the product images it needs without starting from scratch. Strong CPG packaging design then helps shoppers recognize the product even in a small thumbnail, and consistent imagery keeps it recognizable across retail sites and your own online store.

Proof that Superside's approach works

We've seen time and again that the right operating model pays off.

For Amazon Home, Superside delivered 1,092 assets in three months and saved at least 345 hours of work time. Amazon Pharmacy also works with Superside on ad creative and video production.

We also helped scale a global rebrand for Colgate-Palmolive. In 2024, the company embarked on its most significant corporate brand refresh since the 1980s. Updating the logo was only part of the challenge. It also needed a modern brand system to support a digitally transformed global organization.

Superside helped build a globally consistent brand framework supporting 200+ markets, with guidelines designed to help designers and non-designers create polished, on-brand communications. To support adoption, we delivered 1,008+ assets for digital and physical touchpoints, showing how the right approach makes high-volume, high-quality production manageable.

How Superside can help you produce retail media creative

Retail media networks reward brands that can produce purpose-built, on-brand creative at scale and keep producing it as networks multiply and specs change. That's a systems challenge, and it's where Superside, an AI-native creative agency, does its best work.

Our ad creative offering pairs AI-native experts with AI systems, Superspace and Brand Brain, so variant volume, network compliance and brand consistency move in lockstep. Custom AI image models bring down the cost of product imagery and speed up production, while real creatives lead every idea. For more on how this works for large teams, see our guide to digital ad production for enterprises.

Everyone can generate a variant. Not every variant performs. The brands that win can ship the hundredth retail media ad with the same quality as the first, across every network, in the same week the platform changes its specs.

If your retail media pipeline is straining, see how Superside supports enterprise creative at scale, or book a call to find out how we can help your team keep pace with retail media demand.

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