Google launched a cross-store cart in the US and kept a seat at checkout

Google began rolling out Universal Cart in the US on October 15 across Search and the Gemini app. It keeps products from multiple merchants in one place, sends price-drop and restock alerts and can find promo codes. The consumer feature is not currently available in the Czech Republic or the rest of the EU.

One cart connects Search, Gemini and multiple merchants

A shopper can save a product in Search and continue later in Gemini without rebuilding a collection of tabs and screenshots. Google names merchants including Nike, Sephora, Target, Walmart, Wayfair and many Shopify stores.

At supported merchants, customers can pay with Google Pay inside the cart or transfer items to the merchant’s site. The retailer remains the seller of record, sends confirmations and handles support. Universal Commerce Protocol, or UCP, provides the checkout layer.

Google extends its reach from query to payment

Search traditionally sent shoppers to a merchant relatively early. Universal Cart keeps the list, price history, promotions and part of checkout inside Google’s environment. That is convenient for shoppers, while merchants surrender another part of the customer relationship to an intermediary.

UCP can lower integration costs because a store does not need a custom connection for every AI agent. The strategic bet is plain: the platform that controls pre-purchase context can influence product choice, payment method and where the shopper starts next time.

The universal cart is universal only within its supported network

The feature currently starts in the US, and direct checkout depends on each merchant’s participation. Some items will therefore still send users to a retailer’s site. Google also gains a more continuous view of shopping intent across Search and Gemini, raising the bar for clear data and recommendation controls.

Convenience does not erase returns, inventory mismatches or differing store policies. Formal responsibility stays with the retailer, while Google controls the interface and recommendation order. That split may feel much less seamless when something goes wrong.

Checkout share will reveal the cart’s real power

The useful signals are the ratio of native checkout to merchant transfers, merchant adoption and actual use of price alerts. Expansion beyond the US and the promised addition of YouTube and Gmail will show whether the cart becomes a broader shopping layer.

For merchants, the test is whether Universal Cart reduces abandonment without sacrificing data, margin and customer relationships. Google wins when shoppers stop treating individual stores as destinations and start seeing them as inventory inside one interface.

Lilith's verdict

Universal Cart clears the shopper’s tabs while moving Google directly in front of the register. The merchant remains the seller, but someone else increasingly controls the window, the route and the shelf order.