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AIショッピング時代が到来：Google x ShopifyがUCP & GEO最適化ガイドを商人向けに発表

概要

GoogleとShopifyによるUniversal Commerce Protocol (UCP)の共同リリースは、AI駆動の取引を標準化し、AIエージェントをeコマースの新しいトラフィックエントリーポイントとして確立しました。本レポートでは、UCPがもたらすネットワーク効果を分析し、製品データの構造的品質（カタログ最適化）がAI推奨の重要な基準となったことを強調しています。また、GEOlyツールを活用した実践的なガイドを提供し、カテゴリーや説明を最適化してAI信頼スコアを向上させ、AIトラフィックを実際の注文に変える方法を紹介します。

2026/01/15

5 分で読む

更新日 2026/07/13

For the past few years, we've been discussing how "AI will change search, traffic, and conversion." But recently, the industry finally witnessed an infrastructure-level event comparable to the birth of HTTP: Google and Shopify jointly released the Universal Commerce Protocol (UCP).

This protocol pushes "how AI Agents complete transactions with merchants" toward standardization and scale. More importantly, this isn't just a standalone feature, but a network effect driven by an open protocol—it is turning "AI traffic" into "AI transactions."

1. What is UCP? It's Not About "Traffic," It's the "Language of Transaction"

In Shopify's official announcement, UCP is defined as an open standard that allows AI agents to connect with any merchant and complete transactions. It covers key steps in real-world ecommerce transactions: discount codes, membership systems, subscription cycles, pre-orders, and final terms of sale confirmation.

Think of it this way:

The Past: Every platform (ChatGPT / Gemini / Copilot / various Agents) had to "learn individually" how to communicate with different checkout systems of different merchants.
The Present: UCP provides a unified semantic transaction and interaction framework between Agents and merchants—just like HTTP unified information exchange.

This also explains why Shopify chose openness over a walled garden: in the era of agentic commerce, "the network effect of standard protocols" is a stronger moat than platform monopoly.

2. Why Shopify Catalog Has Become Critical

Shopify emphasized in the release: Shopify Catalog is a massive collection of product data that uses specialized LLMs to "categorize, enrich, and standardize" data. This data can be managed centrally via Shopify Admin and distributed to channels like ChatGPT, Microsoft Copilot, Google AI Mode, and Gemini.

Core Logic: When AI Agents become the new "entry point," the structural quality of product data becomes the prerequisite for "can it be recommended, can it be understood, and can an order be placed."

Key Fields for Catalog Optimization

In our research and testing, we found that the focus of Catalog optimization is essentially creating an "AI-friendly wrapper" for Shopify product data.