# marette-agentic-commerce-optimization-acp-ucp-2026-02-23

## Veille

Agentic Commerce Optimization: technical guide to preparing for Google's ACP and UCP protocols - Agentic commerce - Schema.org - Merchant Center

## Titre Article

L'Agentic Commerce Optimization : le Guide technique pour se préparer aux protocoles ACP et UCP de Google

## Date

2026-02-23

## URL

https://fr.custplace.com/business/lagentic-commerce-optimization-acp/

## Keywords

Agentic Commerce Optimization, UCP, Universal Commerce Protocol, ACP, Agentic Commerce Protocol, Google, agentic commerce, schema.org, Merchant Center, OAuth 2.0, JSON, AI agents, e-commerce, conversational attributes, product FAQ, WordLift, social proof, Trustpilot, Custplace, loyalty, checkout, webhooks

## Authors

Nicolas Marette

## Ton

**Profile**: Perspective of a digital commerce and SEO consultant/expert, technical and strategic register, intermediate-to-advanced level

**Description**: Nicolas Marette adopts a tone that is both instructive and alarmist, structuring his guide into actionable steps while stressing the urgency of the transformation. The style blends technical vocabulary (OAuth 2.0, webhooks, JSON schemas) with punchy marketing phrasing ("brands waiting for full rollout will already be behind"). The author draws on concrete references (Wayfair, Etsy) and third-party tools (WordLift) to lend credibility to his argument. The target audience consists of e-commerce managers, technical teams, and digital strategists seeking to anticipate the impact of AI agents on online commerce. The tone is that of a survival guide for an industrial shift presented as inevitable and fast-moving.

## Pense-betes

- **UCP already deployed**: Google's Universal Commerce Protocol, announced in January 2026, is already operational. As of February 11, 2026, Google confirmed that Wayfair and Etsy were using UCP for direct AI-powered purchases.
- **6 core UCP capabilities**: (1) Product discovery for AI agents, (2) Cart management with complex pricing rules, (3) Identity linking via OAuth 2.0, (4) Checkout process, (5) Order management via webhooks, (6) Vertical industry extensions.
- **Schema remains essential**: Although UCP uses JSON schemas, structured schema.org remains the "cement binding all ontologies together." Structured data continues to play a critical role in AI agent comprehension.
- **native_commerce attribute**: Mandatory in Merchant Center for payment eligibility. Return policies are also mandatory for certified merchants.
- **Conversational attributes**: New data paradigm for the AI era: product FAQs, compatible accessories, substitute products, cross-selling opportunities, enriched color descriptions (e.g., "wolf" rather than a generic "purple").
- **Multimodal deployment**: WordLift's visual diffusion simulator shows how a single product image breaks down into multiple search intents, revealing the attributes prioritized by AI agents.
- **UCP roadmap**: Planned extensions toward multi-item carts, complex promotions, standardized loyalty management, post-purchase support, personalization signals, and expansion into travel, services, digital goods, and hospitality.
- **Third-party social proof**: Brand and product reviews from trusted third-party platforms (Trustpilot, G2, Custplace) are frequently cited by LLMs and validate data integrity.
- **Preparation checklist**: (1) Join the UCP waitlist, (2) Configure Merchant Center with return policies and the native_commerce attribute, (3) Ensure developers understand the UCP documentation, (4) Fill in conversational attributes, (5) Audit and improve all schema implementations.
- **Speed of transformation**: The author stresses that this shift is happening faster than previous e-commerce transformations. Wait-and-see brands will already be behind.

## RésuméDe400mots

Nicolas Marette publishes a technical guide to prepare businesses for Google's Agentic Commerce Protocol (ACP) and Universal Commerce Protocol (UCP) protocols, which redefine how brands interact with AI agents in the online purchasing journey.

UCP, announced in January 2026, is already operational: as of February 11, 2026, Wayfair and Etsy are using it for direct AI-driven purchases. The protocol rests on **six core capabilities**: product discovery for AI agents, cart management with complex pricing rules, identity linking via OAuth 2.0, checkout process, order management via webhooks, and vertical industry extensions.

The article emphasizes that **schema.org remains the essential foundation** of this transformation. Although UCP uses JSON schemas, structured data remains the "cement binding all ontologies together," enabling AI agents to understand and navigate the e-commerce ecosystem. **Merchant Center** configuration becomes critical: mandatory return policies, customer support information, the `native_commerce` attribute for payment eligibility, and unique product identifiers.

A major paradigm shift concerns **conversational attributes**: product FAQs, compatible accessories, substitute products, cross-selling opportunities, and enriched descriptions (for example "wolf" rather than a generic "purple"). This data addresses the discovery patterns of the AI era, in which agents query catalogs with unprecedented granularity.

The author uses **WordLift**'s visual diffusion simulator to demonstrate how a single product image breaks down into multiple search intents, revealing the attributes that AI agents prioritize when distributing products.

The **UCP roadmap** plans extensions toward multi-item carts, complex promotions, standardized loyalty management, post-purchase support, advanced personalization signals, and expansion into travel, services, digital goods, and hospitality.

The article stresses the importance of **third-party social proof**: reviews from platforms such as Trustpilot, G2, or Custplace are frequently cited by LLMs and validate the integrity of product data.

The conclusion is a five-step call to action: join the UCP waitlist, configure Merchant Center, train technical teams on UCP documentation, fill in conversational attributes, and audit schema implementations. Marette warns that this transformation is happening faster than previous e-commerce shifts and that brands taking a wait-and-see approach will already be behind by the time full rollout occurs.

## GrapheDeConnaissance

- Google —a_créé→ Universal Commerce Protocol (TECHNOLOGIE, 0.99)
- OpenAI —a_créé→ Agentic Commerce Protocol (TECHNOLOGIE, 0.95)
- Stripe —a_créé→ Agentic Commerce Protocol (TECHNOLOGIE, 0.93)
- Universal Commerce Protocol —permet→ achat direct par agents IA (CONCEPT, 0.97)
- Wayfair —utilise→ Universal Commerce Protocol (TECHNOLOGIE, 0.98)
- Etsy —utilise→ Universal Commerce Protocol (TECHNOLOGIE, 0.98)
- Universal Commerce Protocol —est_basé_sur→ schema.org (TECHNOLOGIE, 0.95)
- Universal Commerce Protocol —utilise→ OAuth 2.0 (TECHNOLOGIE, 0.96)
- Universal Commerce Protocol —utilise→ webhooks (TECHNOLOGIE, 0.94)
- Merchant Center —fait_partie_de→ écosystème commerce Google (CONCEPT, 0.95)
- Nicolas Marette —recommande→ préparation UCP en 5 étapes (METHODOLOGIE, 0.92)
- WordLift —permet→ simulation diffusion visuelle produits (CONCEPT, 0.9)
- agents IA —s_applique_à→ parcours achat e-commerce (CONCEPT, 0.93)
- Universal Commerce Protocol —remplace→ discovery traditionnelle e-commerce (CONCEPT, 0.88)
- preuve sociale tierce —améliore→ intégrité données produits (CONCEPT, 0.9)
- Nicolas Marette —affirme_que→ marques attentistes seront en retard (AFFIRMATION, 0.92)

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Canonical: https://www.thekb.eu/en/fiches/marette-agentic-commerce-optimization-acp-ucp-2026-02-23/