Google is rolling out Universal Cart in the US, letting shoppers save products from different retailers across Search, including AI Mode, and the Gemini app. The basket brings those choices together. Where the purchase happens still depends on the retailer.
Based on 4 reviewed sources · See sources
A place to leave the shopping half-finished
The 15 October launch announcement describes a basket that carries between Google’s shopping surfaces, with price-drop and restock alerts. It names participating retailers including Target, Walmart and Wayfair. This is a US rollout; the announcement does not establish European availability.
Vidhya Srinivasan, Google’s vice-president of Ads and Commerce, introduced it as a way to save items across retailers and return to them later. Her post below announces the rollout, rather than an independent test of the shopping experience.
Google’s Ads and Commerce chief announces the US rollout of Universal Cart across Search and Gemini.
View the original post on X ↗One basket does not mean one checkout system
Google describes two ways to finish: pay with Google Pay inside the cart at participating stores, or move the items into a retailer’s own cart and check out there. In either case, the retailer remains the seller and handles order confirmation and support.
The Cart API documentation makes the difference concrete. Transferring a basket to a merchant website is a separate capability from taking payment inside Google. The initial transfer API creates a cart in one direction; it does not update, delete or keep the two carts synchronised.
Where the purchase finishes
The customer sees a shared basket; merchants can support different routes from it.
| Route | What happens | Merchant requirement |
|---|---|---|
| Transfer to retailer | Items open in a pre-filled basket on the retailer’s website. | Cart API integration; native Google checkout is not required. |
| Pay inside Google | The shopper uses Google Pay with a participating store. | Separate checkout eligibility and integration. |
For retailers, eligibility is the next question
Merchant Center’s checkout guidance says direct checkout is available to select merchants. Meeting requirements, expressing interest and implementing the connection are separate steps; having a product feed alone does not switch on the buy button.
For a retailer assessing this launch, the useful first question is which route it can actually support. Google has confirmed a new place to build a basket, but the sources reviewed here provide no independent evidence of higher conversion or fewer abandoned purchases.
Sources
- An intelligent new shopping cart
Google · Announcement ·
- Universal Cart rollout announcement
Vidhya Srinivasan / Google · Announcement ·
- Cart API overview
Google for Developers · Documentation ·
- About checkout powered by the Universal Commerce Protocol
Google Merchant Center · Documentation
Written with AI assistance from the sources above. Analysis and practical implications are our interpretation. Our editorial approach.
