Ads that sell what isn’t in stock: Quick commerce media’s hidden flaw?

A consumer scrolling through a quick commerce app late in the evening spots a sponsored listing for a familiar biscuit brand. The pack is tagged with the promise that defines the category: delivery in ten minutes. The shopper taps the ad, the product page opens, and the algorithm does what it is designed to do, guiding them toward purchase.

And then the message appears: “Currently unavailable in your area.”

Somewhere between the advertising impression and the attempted purchase, the supply chain has quietly broken the promise that marketing just made. The consumer moves on to the next listing, and the brand has effectively paid for a conversion opportunity that never really existed.

Brand discovery

In India’s fast-growing retail media ecosystem, that small moment of friction is becoming a larger structural problem.

Retail media has emerged as one of the fastest-expanding segments of India’s digital advertising economy as brands shift budgets closer to the point of purchase. According to the dentsu–e4m Digital Advertising Report 2026, advertising on e-retail platforms alone grew by nearly 56% in 2025 to reach about ₹17,601 crore, making it one of the fastest-growing digital ad formats in the country.

More broadly, digital advertising itself crossed ₹71,600 crore in India in 2025 and now accounts for roughly 59% of total ad expenditure, with projections suggesting the share could approach 70% of the market by 2027.

Within that digital mix, consumer-facing sectors remain the biggest drivers of spending. FMCG continues to account for roughly 30% of advertising expenditure across media, while e-commerce and retail platforms are among the fastest-growing digital categories as brands invest more heavily in commerce-linked advertising formats.

The shift is hardly surprising. Retail media offers something traditional advertising rarely could: the ability to link discovery directly to purchase. But as quick commerce platforms multiply their dark stores and hyperlocal fulfilment networks, the challenge of synchronising advertising with real-time product availability is becoming increasingly complex.

For brands, aligning advertising with product availability is becoming a critical operational priority.

Mayank Shah, Chief Marketing Officer at Parle Products, says advertisers already have some visibility into inventory levels across distribution systems, but the process is far from perfect.

“Today, advertisers do have a certain degree of visibility into SKU availability across dark stores and distribution centres, often through third-party tools,” Shah explains. “However, ensuring that ads are served only when inventory is actually present at the relevant location is an area that continues to evolve.”

Part of the complexity comes from the fragmented nature of modern retail supply chains, particularly on quick commerce platforms where inventory moves constantly across hyperlocal warehouses.

Programmatic in India

Devang Shah, Chief Business Officer for Consumer, Industrials and Commerce at Dentsu India, says the issue is increasingly visible in performance advertising campaigns where brands expect immediate conversion.

“It is one of the asks that brands have today, and it is one of the pain areas today — to make sure that ads are exposed only in pin codes or geographies where the inventory is available,” Shah notes.

According to him, brands often supply goods to regional warehouses but lack real-time visibility into how inventory is distributed across individual dark stores or delivery zones. “Brands don’t have visibility on a real-time basis about what the inventory level is at any point in time,” he adds, pointing out that once products enter platform logistics networks, control over distribution largely shifts to the marketplace operator.

The problem becomes even more complex as quick commerce reshapes consumer expectations around speed and locality. Unlike traditional e-commerce platforms that rely on centralised inventory pools, quick commerce operates through dense networks of neighbourhood warehouses, where availability can vary significantly from one location to another.

For brands participating in these ecosystems, marketing strategies increasingly need to align with supply chain realities.

Ganesh Sonawane, Co-founder and CEO of Frido, says quick commerce has forced brands to think more locally about demand generation. “Because these platforms operate through hyperlocal warehouses, campaigns need to be planned with local stock availability in mind,” he says.

Similarly, Anurag Mehrotra, Chairman at Fixderma, argues that retail media works best when marketing and supply chain teams operate in close coordination. “When a consumer discovers a product through an ad, especially on platforms where the journey from discovery to purchase is almost immediate, availability becomes just as important as visibility,” Mehrotra says.

As quick commerce grows, the industry is beginning to explore whether advertising itself needs to become more supply-chain aware. Instead of optimising campaigns purely around clicks, impressions or search ranking, some agencies and technology teams are experimenting with systems that incorporate real-time inventory signals into media buying decisions.

Sharukh Lakhani, General Manager for e-commerce at WPP Media India, says such approaches are already emerging in practice. Using automation systems that analyse multiple signals simultaneously, agencies are beginning to dynamically adjust campaign visibility depending on inventory conditions.

“With agentic AI-led automation we’re able to run campaigns across multiple locations in real time, factoring in signals like inventory levels, share of voice goals and performance metrics,” Lakhani explains. In some cases, these systems can automatically dial down campaign visibility if stock availability drops below certain thresholds in a particular market.

AI in advertising

Industry observers say this shift could mark a broader evolution in how retail media operates. Traditionally, digital advertising has been largely impression-led: platforms deliver ads wherever users show intent signals, leaving fulfilment to follow later.

But quick commerce is forcing a rethink.

Sunitha Natarajan, Director of Digital Strategy at Social Panga, believes the next stage of retail media will involve tighter integration between inventory systems and ad delivery logic. “In quick commerce, stock changes too fast for media to operate blindly,” she says. “The real shift will be from impression-led buying to availability-led optimisation.”

Under such a model, advertising decisions could increasingly depend on fulfilment probability — whether a product is available in a specific dark store, whether inventory can be replenished quickly, and whether the logistics network can deliver within promised time windows.

Platforms themselves are also moving in this direction. A spokesperson for Zepto says its retail media systems already incorporate inventory awareness into ad delivery. “Ads are stock aware. Ads don’t run if the stock is not there,” the spokesperson notes, adding that inventory-linked optimisation is already integrated into the platform’s advertising systems.

Still, many marketers believe the ecosystem has further to evolve before inventory-aware programmatic advertising becomes fully standardised.

Nitin Kosari, AVP for Ecommerce and Marketplaces at LS Digital, says deeper integration between supply chain data and ad algorithms is likely to define the next phase of retail media development.

“Given the dynamic nature of quick commerce inventory, the next evolution of retail media will likely involve deeper integration of real-time stock signals into bidding and ad delivery systems,” Kosari explains.

Such systems could allow advertising platforms to automatically prioritise products with stronger inventory availability or pause campaigns when stock levels fall below certain thresholds. In theory, that would help brands allocate media budgets more efficiently while reducing the risk of wasted impressions.

Search advertising

For now, however, the transition is still underway. Retail media platforms, brands and agencies are continuing to experiment with new optimisation models as quick commerce expands across Indian cities.

What is becoming increasingly clear is that retail media can no longer operate independently of the supply chains it depends on. In a world where delivery promises are measured in minutes rather than days, the difference between a successful conversion and wasted ad spend may come down to whether the right product is sitting on the right shelf at the right time.

Swiggy Instamart and Blinkit by Eternal were also contacted by exchange4media for this story but had not responded at the time of publishing.