What Brands and Retailers Need to Know About Google’s Universal Commerce Protocol

Google and OpenAI Fight to Drive Sales on Their AI Platforms, Consumers Shrug and Head to Retailer Sites

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Google’s Universal Commerce Protocol promises a common standard for agentic commerce. But AI-driven checkout will remain small for the foreseeable future, keeping the focus on how AI influences discovery rather than where transactions are completed.
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Google’s Universal Commerce Protocol (UCP) aims to standardize AI-driven checkout across the shopping journey. But as AI commerce grows, most sales will still happen off-platform, forcing brands and retailers to decide where AI investments actually pay off.

Key Question: How will Google’s UCP affect AI-driven commerce?

Key Stat: AI platforms are starting to drive sales, but little of that spending happens directly on AI platforms. On-platform sales will make up just 1.7% of US retail ecommerce spending in 2029.

authors

Nate Elliott

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Penelope Lin
Director, Data Visualization
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