Retargeting Marketplace Shoppers When You Do Not Own Their Data

A founder we work with put it bluntly last quarter. We spend lakhs sending traffic to our Amazon listings, half of them bounce without buying, and we cannot do a single thing to chase them. He was right, and that frustration is the whole problem with marketplace retargeting. On your own website you drop a pixel, build a list, and follow the shopper around the internet for weeks. On a marketplace you cannot. The buyer is Amazon’s customer, not yours. You never see the email, you never see the phone number, and you are not allowed to build your own remarketing list from their behaviour. So the instinct is to give up on retargeting entirely. That instinct is wrong. You can retarget marketplace shoppers. You just have to do it with the platform’s audience pools instead of your own data, and you have to be deliberate about which pools you reach for.

Why first-party retargeting is off the table here

Start with the constraint, because everything else follows from it. When someone buys your product on Amazon or Flipkart, the marketplace owns the transaction and the customer relationship. You get an order to fulfil, sometimes a masked contact detail, and almost nothing you can legally turn into a marketing list. There is no pixel of yours firing on the product page. There is no cart-abandon event landing in your own systems. The shopper who viewed your listing three times and left is invisible to you at the individual level.

This is not a bug you can engineer around. It is the deal you accepted when you chose to sell on someone else’s storefront. The same opacity that blocks retargeting also makes measurement harder, which is why we treat marketplace analytics as a separate discipline from D2C analytics. If you have ever tried to run real cohort analysis without first-party data, you already know how thin the visibility is. Retargeting lives under the same ceiling.

The audiences you are actually allowed to use

Here is the part most brands miss. The marketplace will not hand you the data, but it will rent you access to the audiences built from that data. Amazon in particular has assembled enormous behavioural pools, and through its demand-side platform it lets you target them with display and video. You are not retargeting your shoppers. You are retargeting Amazon’s segments that contain your shoppers. The distinction matters because it changes what you can and cannot ask for.

The pools worth knowing, roughly in order of intent:

Product viewers. Shoppers who looked at your detail page and did not buy. This is the closest thing to classic cart-abandon retargeting that a marketplace offers, and it is usually the highest-return audience you can buy.
Past purchasers. People who already bought from you. In repeat-friendly categories this is gold, because reactivating a known buyer is cheaper than winning a stranger.
Category browsers. Shoppers active in your category who have not yet found you. Lower intent than your own viewers, but warmer than cold prospecting.
Competitor viewers. Audiences who looked at similar products. Useful for conquesting, expensive to convert, handle with care.
Lookalike and in-market segments. Modelled audiences that resemble your buyers or are signalling purchase intent in your space.

Notice that all of these are platform-defined. You never see who is in them. You choose a pool, you choose creative, and the marketplace matches. That is retargeting without ownership, and it is the only kind available to you here.

You are not chasing your customer across the web. You are renting the marketplace’s memory of them, one audience pool at a time.

Amazon DSP is the main door, not the only one

For most Indian brands serious about this, the practical vehicle is Amazon’s demand-side platform. It is the sanctioned way to act on those audience pools at scale, and the retargeting use case is where it earns its keep. But DSP is not a starter tool, and reaching for it too early wastes money. The viewer and purchaser pools have to be large enough to be worth addressing, which means you need real traffic flowing through your listings first. We have written the full threshold case in when Amazon DSP is actually worth it, and the short version is simple. If nobody has viewed your listings yet, there is nobody to retarget, and DSP has nothing to work with.

Below the DSP threshold you are not without options, you just have blunter ones. Sponsored Brands and Sponsored Display offer lighter retargeting-style placements that recirculate some shopper attention without the overhead. Sponsored Display in particular has views-remarketing and audience targeting that smaller brands can switch on long before DSP makes sense. It is coarser, but it touches the same logic of re-engaging shoppers the platform already knows.

How to read the returns honestly

Retargeting on a marketplace breaks last-click reporting in a specific way, and if you do not adjust for it you will switch off the thing that is working. A display impression that nudges a shopper back to search for your brand often gets no credit, because the conversion is attributed to the branded search click that followed. The retargeting did the work. The search bar took the medal.

So judge these audiences on blended performance, not isolated last-click return. Watch what happens to branded search volume, to repeat-purchase rate, and to total category sales when you turn a retargeting pool on and off. This is also why the economics only make sense once you understand value over the full relationship, not the single order. Retargeting past purchasers is rational precisely because a marketplace buyer is worth more than one transaction, the argument we lay out in estimating customer LTV on marketplaces. If you price a repeat buyer at their first order alone, you will underbid every reactivation audience and lose them to competitors who did the maths properly.

A deliberate sequence, not a switch

The mistake we see most is treating marketplace retargeting as one button labelled on. It is a sequence, and the order protects your budget. The way we stage it:

Build the pool before you spend on it. Get enough listing traffic and purchase volume that the viewer and buyer audiences are large enough to be addressable. Until then, put the money into search.
Start with the highest-intent pool. Product viewers first, then past purchasers in repeat-friendly lines. Prove the return before widening.
Widen outward only as efficiency holds. Category browsers and in-market segments next, conquesting last and cautiously.
Read it blended from day one. Decide on total business impact, branded search lift, and repeat rate, never on a tidy last-click number.

Do it in that order and each pool earns the right to the next. Do it backwards, spending on broad cold audiences before your own viewers exist, and you will conclude marketplace retargeting does not work, when really you just used it inside out.

What changed recently

The reason this matters more in 2026 than it did two years ago is that the audiences you are renting have become the marketplace’s most valuable product. Retail media is now the fastest-growing slice of Indian adex. Amazon and Flipkart together booked roughly Rs 14,652 crore in ad revenue in FY2025, with Amazon India’s ad sales up 25 percent to Rs 8,342 crore, per Exchange4media. When advertising is already near a quarter of a platform’s operating base, the audience pools get richer, the tooling gets better, and the pressure on you to use them well goes up, not down.

Amazon has also been rebuilding the machinery you actually touch. Through 2025 it folded display retargeting into a unified Campaign Manager workspace and extended in-market audience targeting across markets including India, with its DSP moving toward general availability and a phased migration into 2026, according to Amazon Ads. The practical effect for a mid-sized brand is that the gap between coarse Sponsored Display remarketing and full DSP is narrowing, so the viewer and purchaser pools are reachable earlier in your journey than they used to be.

The bigger shift is where the next pool is being built. Quick commerce has turned into a serious ad surface of its own. Blinkit, Zepto and Instamart are projected to draw around Rs 4,900 crore in ad revenue in 2026, and industry operators told Storyboard18 that between 10 and 25 percent of digital performance budgets are already shifting onto these platforms. The retargeting logic carries straight across. You still do not own the buyer, the platform still rents you its memory of them, and if you sell in impulse categories the same sequencing discipline applies on a 10-minute storefront. If you are weighing where to point first, our note on marketing a brand on quick commerce in India sits right next to this one.

Where this sits in the wider plan

Retargeting is one instrument inside the channel, never the whole performance programme. It only pays back when your search foundation is already efficient, and it has to be coordinated against everything else competing for the same rupees, which is the discipline we describe in running performance across marketplaces on one budget. That coordination is the core of our Performance Marketing & Ads practice, and the display side leans hard on our Creative & Content Studio, because a retargeting banner with weak creative converts nobody no matter how warm the audience. The data limits sit alongside the measurement work in our Analytics & Marketplace Intelligence thinking, since you cannot judge a pool you cannot directly see without a deliberate read of the signals you do get.

The summary is plain. You do not own the marketplace shopper, and you never will. But the platform remembers them, and it will rent you that memory in defined pools. Treat those pools the way an operator treats any borrowed asset. Know exactly what each one is, reach for the warmest first, pay for them based on the full relationship and not one order, and measure them on what they do to the whole business. Retargeting without first-party data is not a workaround. On a marketplace, it is the only game, and it is a good one once you play it in the right order.

When Amazon DSP Is Actually Worth It for an Indian Brand

Every few months a founder asks us the same question, usually after a sales rep or a conference talk has planted the seed. Should we be running Amazon DSP. The honest answer for most Indian brands is not yet, and saying so out loud costs an agency nothing except the chance to bill for complexity the brand does not need. DSP is real. It is powerful. It is also the single most over-recommended product in marketplace advertising, sold to brands that have not yet earned the demand to make it pay back. The skill is not knowing how to run DSP. It is knowing when the brand has crossed the line where it starts to make sense.

So let us draw that line precisely, because the threshold is the whole story. DSP does not fail because the tool is bad. It fails because brands switch it on before they have the revenue base and the audience pools to feed it. Below that threshold it is an expensive way to look sophisticated. Above it, it becomes one of the better levers you have.

What DSP actually is, without the sales pitch

Amazon DSP is Amazon’s programmatic display platform. Where Sponsored Products and Sponsored Brands live inside search and target intent, DSP buys display and video inventory across Amazon’s own properties and the wider web, and it targets audiences rather than keywords. That is the real shift. Sponsored ads catch a shopper who is already searching. DSP goes out and finds shoppers based on what Amazon knows about their behaviour, then shows them display creative whether or not they were looking for you at that moment.

The most valuable thing it does, for most brands that use it well, is retargeting. It can show ads to people who viewed your product but did not buy, who bought once and could buy again, who looked at a competitor, or who browsed your category. That is a genuinely different job from the search-led work we cover in Sponsored Products versus Sponsored Brands. It is upper and middle funnel. And upper-funnel programmatic only pays back when there is enough volume flowing through the funnel to retarget in the first place.

Why most brands are not ready

Here is the uncomfortable part. DSP carries real fixed overhead. The audiences need to be large enough to be addressable. The creative needs to be properly produced, because display is a design medium and a weak banner converts nobody. The reporting is denser and the feedback loop is slower than search. And historically a meaningful slice of DSP has run through managed service with minimum spends that only make sense above a certain scale. Pile that overhead onto a brand doing modest monthly revenue and the maths simply does not work. You are paying setup and minimum costs to retarget an audience too small to move the needle.

The deeper problem is funnel logic. A new brand has no warm audience to retarget. Nobody has viewed the listings yet. Nobody has abandoned a cart. The retargeting pools that make DSP powerful are empty, so you end up using it for cold prospecting, which is the most expensive and least efficient thing display can do. Spend that same money on Sponsored Products and it captures shoppers who are already trying to buy. The opportunity cost is brutal at small scale.

DSP does not create demand for a brand nobody knows. It captures and recirculates demand a brand has already built. If the demand is not there yet, DSP has nothing to work with.

The threshold, made concrete

We do not switch on DSP because a brand wants to feel advanced. We switch it on when a set of specific conditions are true at the same time. None of these alone is enough. Together they mean the tool finally has fuel.

A retargeting pool worth retargeting. Enough monthly product views and purchases that audiences of viewers, past buyers, and category browsers are large enough to be addressable and worth the spend. This is the single most important gate.
Revenue scale that absorbs the overhead. The brand is doing enough monthly marketplace revenue that DSP minimums and creative costs are a sensible fraction of spend, not the bulk of it.
Sponsored ads already optimised. Search is working, efficient, and close to maxed out. DSP is the next floor up, not a patch for a leaky search programme.
Healthy repeat behaviour. The category and the products support repeat purchase, so retargeting past buyers has a real economic case behind it.
Creative capacity. The brand can produce display and video that actually persuades, because programmatic without strong creative is just paid impressions.

When those line up, DSP stops being a vanity spend and starts compounding. When even two of them are missing, it almost always loses to putting the same rupees back into search.

What DSP does well once you are over the line

Above the threshold, the case becomes genuinely strong, and it is worth being just as clear about the upside as about the caution. Retargeting recovers shoppers who viewed and drifted, which is some of the highest-return spend in the entire account. It re-engages past buyers in repeat-friendly categories, lifting lifetime value rather than just first purchase. It lets you reach in-market category audiences before they reach the search bar, seeding consideration earlier in the journey.

It also reshapes how you read efficiency. A pure search view of cost and return understates DSP, because much of DSP’s value shows up as a halo on branded search and overall sales rather than as a tidy last-click return. This is exactly why we push brands toward a blended read of performance, the argument we make in full in ACoS versus TACoS. Judge DSP on a last-click basis and you will switch it off right as it starts working. Judge it on total business impact and the picture is fairer.

The retargeting wrinkle specific to marketplaces

There is a structural reason DSP matters more on Amazon than off-platform retargeting tools do. On a marketplace you do not own the customer data. You cannot drop your own pixel, build your own remarketing list, or email the buyer freely. Amazon holds the relationship. DSP is, in effect, your licensed access to retarget the audiences the marketplace owns. That is a real and specific value, and it is the heart of the broader problem we unpack in retargeting marketplace shoppers when you do not own their data. For a brand serious about marketplace scale, DSP is one of the few sanctioned ways to act on that audience at all. That raises the ceiling on what it is worth, once you are over the threshold to use it.

What changed recently

Two shifts in late 2025 sharpen this picture rather than overturn it. The first is structural demand. Retail media is now the fastest-growing advertising channel in India, forecast to grow 26.4 percent in 2025 to about 24,280 crore rupees and another 25 percent in 2026 to roughly 30,360 crore, on track to make up around 15 percent of total ad spend, with Amazon and Flipkart named the two largest retail ad players, according to BestMediaInfo reporting on the WPP Media TYNY forecast. That money is chasing programmatic and full-funnel inventory, which means DSP auctions are getting more competitive, not less. It does not lower the threshold to start. It raises the cost of starting badly.

The second is that Amazon has made DSP easier to actually operate. At its unBoxed event Amazon began rolling out a revamped Campaign Manager that merges sponsored ads and DSP into a single platform, available in India and the rest of Asia Pacific, as covered by PPC Land. One workspace, one view across channels, fewer clicks to move budget between search and display. The healthy reading of this is not that DSP is now a beginner tool. It is that the operational tax of running search and DSP together has dropped, so the moment a brand does cross the threshold, the staging we describe below gets cleaner. Lower friction is a reason to graduate deliberately, not a reason to graduate early.

How we decide, in practice

The decision is not a feeling and it is not a sales conversation. It is a check against the funnel. We look at whether the retargeting pools are large enough to matter, whether search is already efficient and near its ceiling, whether revenue absorbs the overhead comfortably, and whether the category rewards repeat purchase. If those hold, we stage DSP in deliberately, starting with the highest-intent retargeting audiences before any cold prospecting, and we read it on a blended basis from day one. If they do not hold, we say so, and we put the budget back into the search work that is still doing the heavy lifting.

This sequencing sits at the centre of our Performance Marketing & Ads practice, and it never runs in isolation. DSP creative leans on our Creative & Content Studio, because display lives or dies on the banner, and the whole picture has to be coordinated against the rest of the channel mix, which is the discipline we describe in running performance across marketplaces on one budget. The summary is plain and a little against the grain of how DSP usually gets sold. It is an excellent tool for brands that have already built demand, and a costly distraction for brands that have not. Most Indian brands are still in the building phase. Earn the demand first. The programmatic floor will still be there, and it will pay back far better, once there is something underneath it to stand on.