NetMoneyLab ยท Oct 23, 2026
Bottom line: the cart is US-only for now, and the sources we read do not confirm any fee or commission for merchants. Getting in takes developer work, an interest form and selection by Google, so expect weeks or more.
It is one cart that holds products from different retailers inside Google.
There are two routes. In the first, the shopper pays with Google Pay inside the cart.
Google uses a standard called the Universal Commerce Protocol (UCP), which defines how a store exposes inventory and checkout to AI systems.
The sources we read do not confirm any fee or commission. Google's help page does not mention fees, and PPC Land points to the same gap.
Per Relevant Audience, Google has given no date for other markets. The Merchant Center UCP integration is rolling out gradually in the US, with Australia and Canada expected next year.
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