Shopify signed up every eligible store for Meta's Muse AI shopping agent on 8 September 2026 — the day Meta launched it — without asking merchants first. The auto-enrolment comes from a default-on setting called "Allow Shopify to manage for me," and it will do the same for every new AI channel Shopify adds.

The setting sits at the top of Sales channels > Agentic in the Shopify admin and stays on unless a merchant turns it off. Shopify's documentation states: "Agentic storefronts channels have access to your products through Shopify Catalog. Direct checkout is activated for the relevant channels. You're auto-enrolled in new agentic storefronts channels."

Shopify first opted merchants in automatically on 12 January 2026. Amazon blocked Muse from its own store on 20 September 2026, 12 days after Shopify shared eligible stores' products with Meta. Shopify's changelog entry for 8 September says: "Your products are shared with Meta by default through Shopify Catalog."

What does the auto-enrolment include?

The Agentic page covers four named channels and an open-ended catch-all:

• Meta Muse — stores selling to the United States, Canada or Mexico.
• Google AI Mode and Gemini — US stores selling to US customers with a Google Merchant Center account. Google is the exception on data: it reads products from Merchant Center, not Shopify Catalog.
• Microsoft Copilot — stores selling in the US.
• ChatGPT — catalog access only; it sends customers to the store's own checkout in an in-app browser.
• Other channels — what Shopify's help page describes as "Independent developers and startups that are building niche or experimental shopping agents" and "New third-party partners that have recently gained access to Shopify Catalog for testing."

What happens to checkout and analytics?

On Meta, Google and Copilot, customers can pay without leaving the chat app. Shopify calls this direct checkout, and it is on by default for qualifying stores. The customer completes payment in a Shopify checkout inside the app and never opens the merchant's website.

That breaks standard measurement. Shopify says Google Analytics and custom pixels "won't fire" in the Google and Copilot checkouts, and third-party analytics pixels "don't fire" in Meta's. Only server-side tracking captures those orders. Shopify still records them in the admin; Meta orders "are displayed in your Shopify admin in the same way as for any other sales channel." Merchants who check sales in GA or an ad dashboard can miss them entirely.

Who pays — and for how long?

As of September 2026, none of the four channels charges a fee; merchants pay only usual payment processing fees and remain the seller. Shopify's Meta page states: "You remain the merchant of record, and you continue to manage fulfillment, returns, and customer service for these orders."

That free period has an expiry date on at least one platform. Mark Zuckerberg told Alex Heath on the Sources podcast, in an episode published 8 September 2026, that for Muse "the business model over time that we expect is to effectively just take a very small cut of whatever the transaction is," adding that "It'll come from the businesses that they're working with." Google and Microsoft have published no comparable plan.

What does the shopper number on the Agentic page actually count?

The shopper counter at the top of the Agentic page counts visits — not agent purchases. It matches the store's sessions from AI channels, which Shopify defines as "the total number of visits to your online store from an AI channel over a specified time period." A direct checkout never opens the website, so it does not add to the count.

The traffic is real. Shopify said in August 2026 that in Q2, "AI-referred sessions to Shopify storefronts grew 197% (roughly 3x) year-over-year and orders also grew 3x." No figures exist for purchases agents complete inside chat apps. The page's sales figure mixes "referral-based sales and sales that happen through direct checkout," so the orders list filtered to a channel such as Meta is the cleanest view of what direct checkout sells.

How can merchants control it?

Turning off the master setting reveals three switches: Shopify Catalog access, Auto enroll new storefronts, and direct checkout. Each channel gets separate switches — Meta and Copilot have both catalog access and direct checkout, ChatGPT only catalog access, Google only direct checkout. With auto-enrol off, merchants keep current channels and stop receiving new ones.

Removing catalog access can take "up to 7 days before your product data is no longer being shared through Shopify Catalog," Shopify says. Hiding a single product requires marking it unlisted, which "also hides the product from sitemaps, search engines such as Google, and your online store search."

For now the economics favour staying enrolled, but Meta's planned cut means merchants should filter the orders list by channel monthly — that is the number any future commission will be charged against.