
In Microsoft Advertising’s Agentic Playbook, Laurie Sullivan of MediaPost looks into Microsoft’s “agentic commerce blueprint to guide businesses, retailers, and developers when AI agents make purchases on behalf of humans.”
Meaning agents are out there shopping for customers already. Intentcasting anyone?
Laurie explains,
Microsoft’s “Agentic Playbook” focuses on three priorities:
- Getting discovered by the agent (which many brands struggle with today).
- Ensuring the purchase becomes seamless.
- Having the tools to optimize performance of the intended purchase.
Part of the blueprint details a path for marketers to build a 90-day structure for agentic.
Microsoft’s agentic, that is. She goes on:
One Microsoft product marketing director on the call focusing on product feeds said she can already see a major change in consumer behavior — the way people shop….
Microsoft Copilot runs on the same Universal Commerce Protocol (UPC) that many of its larger partners run on, the company said.
The framework connects Copilot with retail, including giants like Target, Ulta Beauty, and Stripe.
UPC founding partners include Google and Shopify.
UPC is new to me. Wikipedia too. But it does have a website: UCP.dev. There it says, “Universal Commerce Protocol (is) the common language for platforms, agents, and businesses (and) provides building blocks for agentic commerce across industries—from discovery to checkout and beyond—allowing the ecosystem to operate through one standard, without custom builds.”
The page goes on to say UCP is “co-developed by industry leaders,” and “built by the industry, to enable seamless agentic experiences. It solves fragmented user journeys that lead to frustrated users and conversion drop off.”
Solves for the seller, that is. Not for the buyer. Yet.
In Under the Hood: Universal Commerce Protocol (UCP), Amit Handa, Google’s Director of Engineering, Google Commerce, and Ashish Gupta, VP/GM Merchant Shopping and Engineering Fellow at Google, write,
By establishing a common language and functional primitives, UCP enables seamless commerce journeys between consumer surfaces, businesses, and payment providers. It is built to work with existing retail infrastructure, and is compatible with Agent Payments Protocol (AP2) to provide secure agentic payments support. It also provides businesses flexible ways to integrate via APIs, Agent2Agent (A2A), and the Model Context Protocol (MCP).
UCP is developed by Google in collaboration with industry leaders including Shopify, Etsy, Wayfair, Target, and Walmart endorsed by over 20 global partners across the ecosystem like Adyen, American Express, Best Buy, Flipkart, Macy’s Inc, Mastercard, Stripe, The Home Depot, Visa, Zalando and many more.
Then,
UCP is built to benefit the entire commerce ecosystem
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For businesses: UCP empowers you to showcase your unique product and service offerings at shopping touchpoints across consumer interfaces such as AI Mode in Google Search and Gemini app, and others in the future. With UCP, you own your business logic, and you remain the Merchant of Record. UCP is built for retailer flexibility, and provides an ’embedded option’ that allows you to maintain a fully customized checkout experience from day one.
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For AI platforms: With UCP, you can enable agentic shopping for your audiences. You can simplify business onboarding using standardized APIs while giving them flexibility to use MCP, A2A and existing agent frameworks of their choice.
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For developers: UCP is an evolving open-source standard designed to be community-driven. We invite you to build the next generation of digital commerce with us.
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For payment providers: UCP’s open, modular payment handler design enables open interoperability and choice of payment methods. Through this design, UCP enables universal payments that are provable. Every authorization is backed by cryptographic proof of user consent.
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For consumers: When your favorite brands adopt UCP, it removes friction from product discovery to decision, so you can shop the brands you love, with peace of mind, ensuring you get the best value inclusive of your member benefits.
The last bullet is bullshit, but ignore that. Look at it the consumer side as an empty space where independent customers operate with agents of their own. These agents will roam and engage in the open market. They won’t just be “members” trapped in coercive “loyalty” programs. (Although smart agents can take advantage of whatever privileges might appear in those places too.)
Personal agents are VRM tools. They are the first VRM tools with real power since we started this project two decades ago.
In AI shopping gets simpler with Universal Commerce Protocol updates, Ashish Gupta writes,
Thanks to our partners and community contributors, UCP now provides new optional capabilities including:
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UCP can help make online shopping more intuitive and convenient, thanks to a new Cart option that will let agents save or add multiple items to a shopping cart at once from a single store — just as a shopper typically would.
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UCP adopters will be able to access a new Catalog capability that lets agents retrieve select real-time product details from a retailer’s catalog where necessary — like variants, inventory and pricing.
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Building on existing standards, UCP will also support Identity Linking. That allows shoppers on UCP-integrated platforms to receive the same loyalty or member benefits they would on a retailer’s site when they’re logged in — like pricing or free shipping — making shopping more connected across the web.
Good, but again still just for retailers. Nothing in there addresses a question my wife asked when she first encountered e-commerce in 1995: Why can’t I take my shopping cart from site to site?
Back to Laurie:
On Thursday, Microsoft officially began rolling out “AI Max,” its full suite of features for search advertising campaigns, to all accounts. It optimizes performance across Copilot Search and Bing.
The product provides search term matching that expands reach beyond keyword lists.
It uses keywords, ads, and landing pages, along with intent and contextual signals to find relevant searches campaign might not reach.
It also customizes text by using a campaign’s existing assets and website content to generate and test variations on messages.
The system then selects the most appropriate combinations at auction time.
URL expansion sends people to the page on a brand’s website that best matches their intent.
Instead of always sending traffic to a static landing page, it can route people to the page that best matches what they seek.
With AI Max features turned on, advertisers importing existing search campaigns from Google, for example, will seamlessly carry over into the corresponding Microsoft campaign.
I boldfaced intent because that’s the main force customers bring to the market’s table.
Add intelligence to that. Big AI today has far more market intelligence for customers than it does for companies, because customers are free to roam the whole world’s marketplace, while retailers and their third parties are trapped inside the walls of their own self-interest, offerings, and situations. Also their old mentality: the one that assumes that the best customer is a surveilled and captive one.
We started ProjectVRM twenty years ago next month with a thesis to prove: that free customers are more valuable than captive ones—to themselves and the marketplace. Turns out we couldn’t prove that until AI came along.
AI puts customers at an extreme advantage. Roger Dunn, Chief Commercial Officer of Thrad, talks about this in a recent Microsoft Advertising blog post:
When someone asks ChatGPT, Copilot, or Gemini for a product recommendation, the AI assembles a shortlist, usually three to five options, and that shortlist becomes the only consideration set that matters…
The vast majority of consumers still verify AI recommendations before buying. They take that shortlist to Google, to Bing, to a brand website, to YouTube. The verification stage is a confirmation exercise, not an open-ended one. They’re searching for the specific brands the AI mentioned, not starting from scratch…
So trust now operates in two layers.
First, there’s machine trust. From a retailer’s perspective – can an AI agent find you, understand what you sell, and have confidence that your product data is accurate and current? That’s about structured data, reviews, fulfillment reliability, pricing consistency. It’s operational, not emotional.
Second, there’s human trust. When the consumer arrives to verify, does your brand have the credibility, the reputation, the experience to close the deal? That’s the brand equity layer, and it’s not going away.
The brands that win will be the ones who treat product data as a strategic asset while continuing to invest in the emotional signals that make humans want to buy. The mistake is thinking you have to choose.
Product truth comes first signal to matter most, and it’s non-negotiable. AI agents reason over structured attributes: dimensions, compatibility, features, use cases. If those attributes don’t exist as machine-readable data, you’re not even a candidate. In the old world, poor data meant lower conversion. In the agentic world, poor data means you never enter consideration. Consumers aren’t prompting “what’s a good shoe brand.” They’re saying “I’m running a 5K this weekend on mixed terrain and my feet run narrow.” If your catalogue can’t answer that level of specificity, the agent recommends someone who can.
Reviews and third-party signals come second. AI systems synthesise review sentiment to answer highly specific questions. One detailed review explaining how a product performed in a real scenario is worth dozens of generic five-star ratings. Third-party endorsements, expert mentions, and certifications act as trust multipliers that AI increasingly weights.
Fulfillment reliability is third and rising fast. As we move up the automation curve, especially when consumers start authorising agents to purchase within preset rules, delivery reliability becomes a make-or-break signal. If an agent places an order and the delivery fails, the agent learns. Your logistics will become your trust score.
Brand authority is fourth. Still vital, but its mechanism is shifting from emotional halo to verifiable digital identity. Your reputation is increasingly a technical credential that agents use to evaluate trustworthiness.
That’s today, when all customers have to work with are Big AI agents. What happens when people get truly personal AIs, in addition to what the giants give them? These will be AIs that give them knowledge and control over the whole corpus of their personal data, meaning everything in this image:

Prompt: A woman uses personal AI to know, get control of, and put to better use all available data about her property, health, finances, contacts, calendar, subscriptions, shopping, travel, and work
What you’re looking at in that image is a far more empowered and agentic customer than one who operates only inside the milieu Roger describes. Because personal AI is by the person, not just for the person. This completely changes the game—especially when the customer comes with her own terms of engagement and her own identity, credentials, policies, and engagement mechanisms. Both will happen. As Joe Mandese put it in MediaPost last November, Imagine Consumers Delegating Their Relationships With Marketers To Agents.
Nothing in marketing as we’ve known it contemplates the implications of full and independent customer agency, because marketing still lives inside the business-as-usual box to which we addressed The Cluetrain Manifesto twenty-six years ago. Cluetrain said a lot of stuff to that box, but here was the summary statement:

Chris Locke wrote that. Wish he was still around to see personal AI’s reach break corporate grasp.
From inside that old box, what Microsoft talks about looks like this:
retailer → machine-readable offers → agent → customer
The customer’s side looks like this:
customer → machine-readable intentions/terms/preferences → agent → market → company
The view from above is this:
customer → agent ← market → agent ← company
Just three things happen in markets:
- Transactions
- Conversations
- Relationships
In the industrial age, which is finally ending, business was focused almost entirely on transactions. Still is, for good reason: without transactions we wouldn’t have markets. It was strong there, but weak in the other two.
Conversations were kept to a minimum because they looked like overhead: costly in time and money. Service was pushed off to call centers, and now call center workers are being replaced by AI robots.
Relationships were about “loyalty” programs in which customers were held captive and milked.
In the agentic world, the opportunities for conversation and relationship are immense—and will drive many more transactions.
Customers and companies can collaborate on countless benefits for each other when imarket ntelligence flows both ways. Products, services, and experiences by customers and companies can all improve together. Guesswork is minimized. So are the operational and moral costs of surveillance.
Lots to work on here.
Bonus linkages:
- Jamie Smith (who mentions UCP here)
- Iain Henderson
- Nitin Badjatia
- The Cluetrain angle









