Google’s UCP Explained: Will "Agentic Commerce" Replace Search in 2026?

UCP (Universal Context Protocol) is a new infrastructure layer aiming to standardize “agentic commerce.” It breaks ecommerce into modular capabilities (“Lego bricks”) so AI agents can negotiate tasks like product discovery, checkout, and payments across platforms.

This has become an infrastructure war: Google is pushing UCP as an open-source standard versus OpenAI’s ACP (Agentic Commerce Protocol) and Anthropic’s MCP (Model Context Protocol). Big retailers such as Walmart and Zalando are already experimenting with UCP right now.

In this episode of Growing Ecommerce, Mike Ryan and Christian Scharmüller unpack what “Agentic Commerce” means as AI shifts from generating text to taking actions in online shops—and what that implies for your data feed strategy.

In this episode, we cover:

• The Rise of UCP: how agents “negotiate” capabilities like discovery and checkout—similar to early standards wars (e.g., electricity).

• Adoption Reality Check: will consumers let AI buy their sneakers? Mike forecasts ~10% of UCP-based transactions within 2 years; Chris estimates ~5%.

• The Protocol War: how partnerships with giants (Walmart, Zalando) help Google try to win the standard.

• New Merchant Responsibilities: to reduce hallucinations, Google plans 10–12 new feeds/attributes, pushing more structured-data work back to retailers.

About the hosts:

Mike Ryan (Austria; originally Boston) is Head of Ecommerce Insights at Smarter Ecommerce (smec), with 10+ years in retail and PPC.

Christian Scharmüller is CCO & Managing Director at smec, a long-time PPC/ecommerce leader and frequent speaker (e.g., SMX, OMR).

Smarter Ecommerce (smec) helps e-commerce brands optimize PPC with AI-driven automation focused on profit and business outcomes, leveraging first-party data like margins and LTV.

Follow smec for more performance marketing insights:

LinkedIn: https://linkedin.com/company/smarter-ecommerce-gmbh

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#eCommerce #GoogleAds #UCP #AgenticCommerce #AI #DigitalMarketing #RetailTrends #GoogleMerchantCenter

smec is a Google Premier Partner and three-time Microsoft Retail Partner of the Year, managing €500M+ in ad spend and driving €5B+ in annual e-commerce revenue across 350+ global retail clients (incl. THG, Snipes, REWE, Intersport).

More:

Website: https://www.smarter-ecommerce.com

Newsletter: https://smarter-ecommerce.com/en/newsletter/

Instagram: https://www.instagram.com/smarterecommerc

About Smarter Ecommerce (smec):

Smarter Ecommerce (smec) empowers e-commerce brands with AI-driven PPC automation that optimizes for profit and business outcomes while maintaining strategic control.

The platform activates first-party data - profit margins, customer lifetime value, and key business metrics - to automate campaign optimization toward goals like profitability and efficient growth, while detailed campaign insights provide full transparency and enable PPC teams to focus on strategic oversight rather than manual execution.

As a Google Premier Partner and three-time Microsoft Retail Partner of the Year, smec manages over €500 million in ad spend and drives €5B+ in annual e-commerce revenue for 350+ global retail clients including THG, Snipes, REWE, and Intersport.

Make sure to follow smec - Smarter Ecommerce for more performance marketing insights:

smec - Smarter Ecommerce: https://www.smarter-ecommerce.com
LinkedIn: https://linkedin.com/company/smarter-ecommerce-gmbh
Newsletter: https://smarter-ecommerce.com/en/newsletter/
Instagram: https://www.instagram.com/smarterecommerce/