Google Universal Cart: what it means for your ecommerce

At Google I/O 2026, its annual developer conference, Google introduced the Universal Cart: a smart shopping cart that gathers everything you're viewing to buy in one place. The idea is to stop having ten tabs open comparing products; the cart centralizes everything and also works independently.

How it works

You can add products to the cart from Search, Gemini, YouTube, or Gmail. As soon as you add something, the cart starts working in the background: searching for deals and price drops, providing price history, and notifying you when a product becomes available again. It operates on the Gemini models, so it improves as the models get better.

It also cross-references data to get ahead: if you're assembling a PC with parts from multiple stores, it alerts you to incompatibilities and suggests alternatives. Since it's built on Google Wallet, it knows your payment methods and loyalty programs, and uses this information to help you decide.

When you're ready to buy, you can pay with Google Pay without leaving Google, or transfer the products to the merchant's website and complete the purchase there. In both cases, the merchant remains the registered seller.

Google also announced the Agent Payments Protocol (AP2): a security layer that allows an agent to purchase on your behalf autonomously, within the limits you set — specifying brands, products, and spending caps.

What it means for an online store

For brands with ecommerce, a centralized shopping cart means less traffic to your website, fewer behavioral data points, and fewer opportunities for customer loyalty. The cart could become the first — and only — point of contact before the purchase decision. This makes it even more crucial to ensure your product presentation is top-notch: the listing, images, and price. This is what the customer will see.

Among the first merchants with checkout integration are Nike, Sephora, Target, and Walmart, as well as Shopify brands like Fenty and Steve Madden. Our take: if you sell on Shopify, you're in a good position to be part of this flow soon. But using the platform doesn't guarantee placement — you need to ensure your catalog is well-prepared.

For the end customer, however, it's pure convenience: everything in one place, with recent browsing history and the best deals at hand.

When it arrives

The Universal Cart launches this summer in the U.S. via Search and Gemini, followed by YouTube and Gmail. International expansion will include checkout with UCP: first in Canada and Australia, then the United Kingdom.

If you sell online, now is the time to review how your product appears outside your website. You'll be making fewer decisions about the storefront itself — but more about what is displayed within it.