Google's Universal Cart Launches in the US Across Search and Gemini

Google's Universal Cart went live in the US on 15 October, in Google Search (including AI Mode) and in the Gemini app. Suresh Ganapathy, Senior Director of Product Management for Consumer Shopping, announced it. Google previewed the cart earlier in the year, and says checkout is powered by the Universal Commerce Protocol (UCP).

The cart is one shared list that follows a shopper across Google's surfaces. Google's own example: someone saves a handbag from Steve Madden in AI Mode, then a sweater from Quince and a lip gloss from Ulta Beauty in the Gemini app, and finds all three waiting later.

What the cart does

Google lists four functions:

1. Saves products from multiple retailers. Items stay in the cart across Google, so a shopper doesn't need tabs or screenshots.
2. Watches price and stock. Google says the cart is built on the 60+ billion continually refreshed listings in its Shopping Graph, and sends notifications about price drops or items coming back into stock.
3. Helps with savings. The cart is built on Google Wallet, so it understands a shopper's card perks and suggests a payment method. It also shows relevant promo codes.
4. Handles checkout. Shoppers can pay with Google Pay inside the cart, or transfer their items to the merchant's own cart to finish there.

Merchants Google names for the simplified checkout are Nike, Sephora, Target, Ulta Beauty, Walmart, Wayfair and "many Shopify merchants."

The line that matters to retailers

Google states that either way, shoppers "will receive direct confirmations and customer support from the merchant, and they will remain the seller of record." So the retailer keeps the customer relationship, the order and the support burden, even when the purchase never touches its site.

What retailers should check

Google's post is a consumer announcement, not merchant documentation, so the following is our reading and not Google guidance:

• Feed accuracy now has a visible consequence. Price-drop and back-in-stock alerts depend on the product data Google holds. A stale price or availability value could trigger the wrong alert in front of a shopper.
• Promo codes appear in the cart. If you run codes, it makes sense to check how they are represented in Merchant Center, since the cart says it surfaces relevant ones.
• Some sales will complete off-site. Where checkout happens in the cart, your own analytics won't see the session. Reconcile against orders as well as site conversions.
• Eligibility isn't spelled out. The post names large retailers and Shopify merchants but doesn't explain how other merchants join UCP checkout, so read the Merchant Center documentation before assuming you are covered.

This sits alongside the retail changes in our report on Google's agentic commerce push. For stores that want help with the product data side, see our ecommerce SEO work.

Sources

• Google: An intelligent new shopping cart (15 October 2026)