The Rise of Agentic Commerce & Why Retail Marketing Must Kill the Funnel to Survive 2026

A take on the rise of agentic commerce by Jasvinder Bindra, Commerce Media Director, M+C Saatchi Performance

The retail industry has officially exited “Pilot Purgatory.” As we navigate the change in consumers’ shopping behaviour in 2026, we are seeing a complete deconstruction of the consumer path to purchase. The global AI retail market, which sat at a modest $7 billion a few years ago, has matured into a foundational layer of the global economy, projected to drive trillions in value-added productivity by the end of the decade. (Source: Boston Consulting Group)

However, most brands are still playing by 2023 rules. We see advertisers optimising for clicks in a world moving toward autonomous tasks. If a brand’s strategy is still built on capturing attention, they’re already losing to the brands optimising for Agentic Preference.

Let’s take a look at the importance of this change.

The Death of Discovery and the Rise of the Invisible Prime

For nearly fifty years, retail marketing was a battle for the mental shelf. Advertisers used visual cues, catchy slogans, and prime placements to win a place in the consumer’s subconscious. But in 2026, the primary shopper is an AI Agent, a digital surrogate that filters, evaluates, and executes purchases based on logic instead of emotion. As of March 2026, 33% of consumers report they have fully replaced traditional product discovery methods with dedicated AI platforms. (Source: PYMNTS)

This is called the‘Great Disintermediation’. It refers to the transition from traditional platforms (like search engines or marketplaces) in the consumer journey, as autonomous AI agents bypass visual interfaces to find and purchase products directly via backend data.

According to Gartner’s research, nearly a third of all digital interactions will involve autonomous agents by 2028. When a consumer tells their AI, “Find me a sustainable, navy-blue blazer for a wedding in Tuscany next week,” the agent doesn’t browse the results page. It scours a multi-dimensional data web.

The traditional “Discovery Phase” is being compressed into a millisecond of algorithmic computation. For brand retail media managers, this means the Pixels-to-Purchase model is changing rapidly and dramatically. We are moving toward Data-to-Decision. If your product data is not agent-readable, your brand is effectively invisible, regardless of your ad spend. (Source: McKinsey, Envive, Forbes)

From Search Engine Optimisation (SEO) to Generative Engine Optimisation (GEO)

The industry has reached a tipping point where traditional search behaviour is being fundamentally changed by Answer Engines. Google still commands approximately 90% of the global search market share, making it by far the dominant force in search, yet it has begun cannibalising its own model: AI Overviews now reach over 200 countries and 40+ languages, with Google reporting a 10%+ increase in search usage for AI Overview query types in key markets like the US and India. Meanwhile, ChatGPT processes 2 billion queries daily and has crossed 883 million monthly users, with Perplexity, Gemini, and OpenAI Search all scaling rapidly alongside it. The question now shifts from whether AI search will dominate to whether your brand is visible inside it.

The strategy for 2026 expands far beyond ranking for keywords. It is increasingly about Contextual Authority. GEO requires a meaningful overhaul of product metadata: it is no longer enough to list ‘Material: Cotton.’ To be recommended by an AI agent, brands must provide structured data that addresses complex, layered intent, including durability, supply chain transparency, and real-time inventory at the local level, so that an agent can evaluate fit with full confidence.

Retail Intelligence Networks are the new RMNs. The most progressive brands are moving their budgets away from top-of-funnel awareness and toward data liquidity, ensuring their product specs are so robust and accessible that an AI agent can recommend them with 100% confidence.

The Collapse of the Marketing Silo

Internal marketing structures are the greatest hurdle to AI adoption. Most organisations still separate Brand, Performance, and E-commerce. In an AI-driven world, this separation is a liability.

The most successful retailers we work with have unified their operations into a single decision layer. Why? Because AI agents don’t care about your internal departments. They need to know in real-time if a promotion is valid, if the stock is available in the user’s zip code, and if the customer’s loyalty points can be applied.

As noted by Harvard Business Review, the “Personalisation at Scale” promise is finally real, but only for those who have integrated their CRM and Supply Chain into their Media engine. We are seeing a move toward predictive nudges where AI identifies a customer’s need (e.g., the laundry detergent will run out in two days) and handles the replenishment before the customer even thinks about it.

The Counter-Intuitive Truth: The Brand is the “Safety Net,” Not the “Hook.”

Here is an opinion that many industry peers might find heretical: In the age of AI, Brand Loyalty is not a growth engine but a defense mechanism.

In a logic-gated shopping world, an AI agent will always choose the better option (faster shipping, better price, or higher rating). The only time a human overrides an agent is when there is a trust deficit. 

This suggests that while product reviews were once valued primarily for credibility, they have now become a strategic asset for every brand, particularly for new launches. AI systems actively analyze the full spectrum of publicly available reviews, interpreting strengths, weaknesses, and contextual nuance, and surface products as recommendations within emerging customer journeys only when the signals indicate a genuine likelihood of fit.

Therefore, brand building in 2026 is about creating a “safe haven.” Your marketing should not be convincing people to buy, but rather should be reassuring them that when the AI recommends you, the promise will be kept. High-performance marketing is now about fulfilling or maintaining brand integrity. If your AI-recommended product arrives late or doesn’t match the “Virtual Try-On” silhouette, the Agentic Feedback Loop will penalize your brand for months.

Actionable Directives for the C-Suite for 2026

To future-proof your brand, you can start by building a solid foundation with the following four non-negotiable measures:

• Implement Agent-Specific APIs: It’s time we stop relying on web scrapers and build dedicated APIs that allow AI shopping agents to verify your “Real-Time Value Prop” (Current Price + Stock + Shipping Speed). This is literally the new ad copy. 
• Shift to Zero-Party Data Strategy: With the death of cookies and the rise of privacy-first AI, your only edge is the data the customer voluntarily gives you. Use AI-driven conversational interfaces to gather specific preferences that stay within your ecosystem.
• Adopt Economic Value of Marketing (EVM) Metrics: ROAS is a vanity metric in an automated world. Move to EVM, which factors in cost-to-serve, return rates, and customer lifetime value (LTV). An AI-driven sale that results in a return is a net loss for the brand.
• The Creative-Quant Hybrid Team: It’s high time to ditch the silos. Hire creative technologists who can prompt-engineer visual assets faster while simultaneously auditing the algorithmic performance of those assets.

The Future Is Moving From Commerce to “Concierge”

By 2027, we predict the storefront will become a secondary destination. The primary destination will be the Personal Concierge. Along with websites, retailers will begin to think about owning experience nodes that plug into a user’s digital life. (Source: IG&H, McKinsey)

At our agency, we act as the bridge to this future. We don’t simply run ads for your brand. We work towards building the structured intelligence that ensures your brand is the choice of AI agents.

The era of “Search” is over. The era of “Inference” has begun. 

If your brand isn’t ready to be inferred, it’s ready to be forgotten.

At M+C Saatchi Performance, our retail media experts offer free retail media audits in 10 business days. If you want to avail it for your brand, check out here for more.