Meta is preparing to launch Muse, its AI shopping agent, in the UK within weeks, and the merchant documentation behind it shows that some sales Muse completes may never trigger an affiliate's usual tracking.
Shopify's help pages for selling through "Meta AI and Muse" say "third-party analytics pixels, such as those used for marketing attribution, don't fire on direct checkouts that are completed on a Meta surface", and the page names Muse among those surfaces. Google Analytics and custom pixels do not fire either. The order arrives in the retailer's Shopify admin under its own sales channel, "Meta AI and Muse".
That applies to purchases completed directly on Meta, not to everything Muse buys. Meta says Muse works through its own browser, so it can also shop on a retailer's own website and use that retailer's checkout. That browser runs on a computer Meta hosts, not on the shopper's phone or laptop, so a cookie set when the shopper clicked an affiliate link earlier may not be there when Muse checks out. Shopify adds that if a retailer switches Meta's direct checkout off, shoppers are sent to its online store to pay.
The Sunday Times reported the UK plans on 8 November, saying Meta was lining up retail partners whose websites Muse could buy from. Meta declined to comment, according to Business Matters, and no UK retailer has been named. Muse launched in the US in September and has since reached Canada, Mexico, Singapore and Japan.
Who gets paid when Muse buys?
Muse is free for most users. Mark Zuckerberg told developers at Meta Connect in September that "over time we will profit by taking a small fee from transactions." Meta has not published a rate or said who would pay it. For now Shopify says "there are no fees associated with selling in Meta's direct checkout".
A transaction fee could eventually put Meta in competition with affiliates for a share of retailers' acquisition budgets, though Meta has not said who would pay.
If a shopper reads a review, then asks Muse to buy the product, the publisher's usual tracking pixel may never fire. Whether that publisher still earns commission depends on what other attribution methods the retailer and its network have in place. Shopify confirms server-to-server checkout events still fire, but does not say whether those events carry an earlier affiliate referral.
That is the gap Partnerize's Maura Smith described when she told Hello Partner last week that "visibility doesn't equal verified value". OpenAI's new Business Hub has the same blind spot, counting ChatGPT mentions and clicks but not sales.
Codes are one such method. Shopify says automatic discounts and discount codes work in Meta's checkout, so a voucher or creator code Muse applies would still appear on the order. That leaves a possible route for code-based attribution, provided retailers and their networks recognise those codes when reconciling orders. It also means a code meant for one partner's audience, a creator's code for instance, could be picked up by an agent shopping for someone else.
Shopify already lists the UK among 11 countries where Meta's direct checkout is shown. Whether UK Muse purchases will run through it, or through retailers' own sites as the Sunday Times reported, is not yet clear.
Retailers on Shopify can check whether Meta's direct checkout is switched on, as it is by default for eligible stores, and ask their network how orders on that channel will be reported to partners.
The question affiliate networks and OPM's now need Meta to answer is whether a Muse sale that began on an affiliate’s page will earn that affiliate anything.
