If you run a Shopify store
You may already be selling into AI chats. Shopify turns agentic storefronts on for eligible stores. The job this week is to look at Sales channels, Agentic, and decide which surfaces you actually want.
What Shopify turned on
From Shopify's own docs: products go out through Shopify Catalog, or through Google Merchant Center for Gemini and AI Mode. ChatGPT is a referrer. The buyer checks out on your store, in ChatGPT's in-app browser or a new tab. Google, Copilot, and Meta can use Shopify's direct checkout if that toggle is on. You keep the customer record. Orders show channel attribution in admin.
You have to accept the Agentic Storefronts supplemental terms. That is a legal click, not a plugin.
ChatGPT vs Google in practice
ChatGPT will not complete Instant Checkout for you anymore. OpenAI killed that loop in March 2026. If a buyer finds you there, they still hit your checkout. Your theme, your Shop Pay, your fraud tools. That is slower than a magic "buy in chat" button. It is also the checkout you already know how to support.
Google's UCP path is the one that can finish inside the agent, with Google Pay or Shop Pay in the handshake. Shopify's UCP page shows merchants and agents advertising capabilities at /.well-known/ucp. You probably do not hand-edit that JSON. Shopify does. You still need clean product data: title, price, inventory, shipping, returns. Garbage in the catalog becomes garbage in the chat.
The Agentic plan
Shopify is selling a separate Agentic plan: syndicate to chats, pay when you sell, no monthly fee on their marketing page. Direct checkout starts off. Setup is not identical to a normal Shopify store. If you already have a live shop, you likely want the built-in agentic storefronts, not a second plan, unless you are starting from a catalog with no storefront. I would read both docs before you sign anything.
What I would do this week
Open Agentic in admin. See which channels are on. Turn off any surface you cannot support (returns, custom products, age-gated SKUs). Fix the catalog fields a model will quote. Then stop. You do not need to implement ACP by hand if Shopify is already speaking UCP and feeding ChatGPT as a referrer.
Protocol detail: ACP vs UCP. Shopper view: if you shop with an agent.
September 2026. Eligibility depends on Shopify. Check admin, not a blog.