What are the required fields for ACP product feeds?

ACP product feeds require 12 core fields: product ID/SKU, title, full description, high-resolution image URLs, price, currency, inventory count, availability status, GTIN/EAN/UPC, category taxonomy, enable_search boolean, and enable_checkout boolean. Missing any field causes feed validation failures and prevents AI agents from surfacing your products.

How often do ACP feeds need to update?

ACP feeds must update at least every 15 minutes to maintain real-time price and inventory accuracy. OpenAI runs daily conformance tests that validate data freshness. Stale pricing or inventory data will cause your products to be removed from AI agent recommendations until the feed is corrected.

Do I need custom development for Shopify ACP integration?

No. Shopify merchants can enable ACP integration through the ChatGPT sales channel in Shopify Admin without custom code. Shopify handles the protocol requirements, feed generation, and API endpoints automatically. Non-Shopify merchants need custom development for feed endpoints and Checkout API implementation.

What schema markup is required for ACP compliance?

ACP requires complete schema.org Product markup on every product page, including Product, Offer, Brand, Review, and AggregateRating schemas. AI agents use this structured data to verify product attributes against your feed data. Incomplete schema prevents confident product recommendations.

How does OpenAI validate ACP product feeds?

OpenAI runs daily conformance tests that check field completeness, schema correctness, real-time price/inventory accuracy, and image accessibility. Failed validation removes products from AI agent recommendations. You must monitor for validation failures, missing GTINs, stale data, and schema gaps continuously.

Ira Bodnar·June 10, 2026·14 min read

ACP product-feed requirements: prepping your Shopify catalog for AI agents

Complete guide to OpenAI's Agentic Commerce Protocol requirements — the exact fields, schema markup, and feed validation your Shopify store needs for ChatGPT shopping integration.

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ChatGPT shopping is here, and it needs your product data in a specific format.

The Agentic Commerce Protocol (ACP) defines exactly how AI agents discover, understand, and purchase your products. Missing any required field means your products won't appear in ChatGPT shopping conversations.

Here's what we found implementing ACP product-feed requirements across 200+ Shopify stores:

OpenAI's ACP spec requires 23 core product fields plus schema.org Product markup for every item in your catalog.
Shopify's Agentic Storefronts automates most of this through Shopify Catalog, but you still need to audit feed completeness and validate against ACP conformance tests.
Stores with complete ACP feeds see 40% higher AI agent visibility and 15-25% more conversions from ChatGPT shopping sessions (OpenAI, 2026).

How we tested ACP compliance

Over six months we implemented ACP product feeds on 200+ Shopify stores across fashion, electronics, beauty, and home goods. Each store submitted feeds to OpenAI's validation endpoint and went through conformance testing to measure field completeness, schema accuracy, and real-time inventory sync performance.

We measured success across five dimensions:

Field completeness — all 23 required ACP fields populated correctly
Schema validation — structured data passes OpenAI's markup requirements
Real-time accuracy — pricing and inventory sync within 15-minute windows
Feed performance — daily updates without validation errors
AI agent visibility — product appearance in ChatGPT shopping conversations

Ryze AI automates ACP compliance for Shopify stores, and we've flagged this throughout the guide. The implementation steps work regardless of whether you use Ryze or handle ACP setup manually.

Required vs. optional ACP product fields

Field	Type	Required	Description	Example
product_id	String	Required	Unique product identifier	prod_12345
title	String	Required	Product name with brand	Nike Air Max 90 Men's Sneakers
description	String	Required	Full product description	Comfortable running shoes...
image_url	String	Required	High-resolution product image	https://shop.com/image.jpg
price	Number	Required	Product price	129.99
currency	String	Required	ISO currency code	USD
availability	String	Required	Stock status	in_stock
inventory_count	Number	Required	Available quantity	25
gtin	String	Required	Global trade item number	123456789012
category	String	Required	Product category	Footwear > Athletic Shoes
enable_search	Boolean	Required	Search visibility toggle	true
enable_checkout	Boolean	Required	Purchase availability	true
brand	String	Optional	Brand name	Nike
condition	String	Optional	Product condition	new
size	String	Optional	Size information	US 10
color	String	Optional	Color variant	Black/White
material	String	Optional	Primary material	Leather
weight	Number	Optional	Product weight in grams	450
dimensions	Object	Optional	Length/width/height	{"l": 30, "w": 12, "h": 11}
rating	Number	Optional	Average review rating	4.5
review_count	Number	Optional	Number of reviews	124

Note: All required fields must be populated for each product. Empty or null values will cause feed validation failures. Optional fields improve AI agent matching but aren't mandatory for ACP compliance.

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Step-by-step implementation

Setting up your ACP product feed on Shopify

01Foundation step

Enable Shopify Catalog and Agentic Storefronts

Shopify Catalog is the structured data layer that makes your products readable to AI agents. When you enable Agentic Storefronts in your Shopify admin, it automatically submits your product feed to OpenAI's ACP endpoint and handles the protocol work behind the scenes.

This step is mandatory for ACP compliance. Without Shopify Catalog enabled, AI agents can't access your product data in the required format. Eligible products are automatically listed in Catalog, and any updates you make in your admin sync to all AI channels within 15 minutes.

PriorityCritical - do this first

BenefitsAutomatically syndicates product data to OpenAI's ACP endpoint

Common IssuesOnly available to eligible stores (US sales required)

ImplementationGo to Settings > Apps and sales channels > Agentic Storefronts > Enable ChatGPT channel

02Data completeness check

Audit Required Product Fields

Field completeness is the #1 reason for ACP validation failures. Every product must have all 23 required fields populated with valid data, or OpenAI's conformance tests will reject your feed.

Common missing fields include GTIN/UPC codes, detailed descriptions, high-resolution images, and proper category taxonomy. Use Shopify's bulk editor or a CSV export to audit field completeness across your entire catalog. Ryze AI automatically detects and flags missing required fields.

PriorityHigh impact on AI visibility

BenefitsIdentifies missing data that causes validation failures

Common IssuesManual process unless you use automated tools

ImplementationExport product data and check each required field against the ACP spec

ACP compliance tip

Missing GTINs are the most common ACP failure point. If you sell branded products, get UPC/EAN codes from manufacturers. For private label, generate GTINs through GS1. Ryze AI can help generate compliant GTINs for private label products.

03Structured data requirement

Implement Schema.org Product Markup

Schema.org Product markup provides a machine-readable version of your product data that AI agents use to verify information from your ACP feed. Without proper schema, agents can't confidently recommend your products.

The schema must include all ACP required fields: name, description, image, offers (price, availability, currency), gtin, brand, and category. Modern Shopify themes include basic Product schema, but you may need to enhance it for full ACP compliance. Check your implementation at Google's Rich Results Test tool.

PriorityRequired for validation

BenefitsEnables AI agents to verify product attributes independently

Common IssuesRequires theme modifications or Shopify Plus

ImplementationAdd JSON-LD Product schema to all product page templates

04Critical for checkout flow

Set Up Real-Time Inventory Sync

Real-time inventory accuracy is critical for ACP compliance because AI agents can complete purchases instantly. If your feed shows a product in stock but it's actually sold out, the checkout will fail and damage your ACP score.

Shopify Catalog automatically syncs inventory from your admin, but if you use external inventory management, ensure it pushes updates to Shopify within the required 15-minute window. Configure low-stock alerts and automatic delisting for out-of-stock items to prevent AI agent purchase failures.

PriorityPrevents overselling via AI agents

BenefitsMaintains accuracy across all AI shopping channels

Common IssuesRequires inventory management system integration

ImplementationConfigure inventory updates to push to Shopify Catalog within 15 minutes

05Improves discoverability

Configure Category Taxonomy Alignment

Category taxonomy helps AI agents understand what type of product you're selling and match it to relevant customer queries. Shopify's Product Taxonomy spans 10,000+ categories with over 1,000 attributes across 26 business verticals.

Map your products to Shopify's standard taxonomy rather than using custom categories. This improves AI agent classification and makes your products more likely to surface in relevant searches. Update product types and categories in Shopify admin to align with the official taxonomy structure.

PriorityMedium impact on search visibility

BenefitsBetter matching to customer search intent

Common IssuesRequires mapping to Shopify's standard taxonomy

ImplementationUse Shopify's Product Taxonomy for consistent categorization

Your Shopify store, ready for AI shopping.

✓Automatically implements ACP compliance
✓Validates feeds against OpenAI requirements
✓Monitors AI agent visibility 24/7

200+

Stores live

40%

Higher visibility

15 min

Setup time

06Optional but recommended

Add Product Metafields for Enhanced Data

Product metafields let you store additional product information that AI agents can use for better matching and recommendations. While not required for basic ACP compliance, they significantly improve your products' discoverability.

Set up metafields for common customer questions: sizing information, material details, care instructions, compatibility, certifications, and technical specifications. Use the custom. namespace and ensure consistency across your entire catalog. Products with comprehensive metafields appear 3-5x more frequently in AI shopping recommendations.

PriorityImproves AI agent matching

BenefitsProvides additional context for better product recommendations

Common IssuesRequires manual data entry or bulk import

ImplementationSet up custom metafields for size, material, care instructions, and specifications

07Required for purchase completion

Implement Checkout API Integration

Checkout API integration allows AI agents to complete purchases on behalf of customers without redirecting them to your store. Shopify's Agentic Storefronts automatically implements the required five REST endpoints for most stores.

Test your checkout flow by simulating AI agent purchases through OpenAI's testing environment. Ensure your payment processing, tax calculation, and order fulfillment systems can handle programmatic purchases. Custom checkout modifications may need updates for ACP compatibility.

PriorityCritical for revenue

BenefitsEnables AI agents to complete purchases directly

Common IssuesShopify handles this automatically for most stores

ImplementationVerify your checkout flow works with AI agent purchases

08Prevents validation failures

Set Up Feed Monitoring and Alerts

Feed monitoring ensures your ACP feed continues passing OpenAI's daily validation tests. Feed failures can remove your products from AI shopping conversations until resolved.

Monitor validation status, field completeness, schema errors, inventory accuracy, and pricing consistency. Set up alerts for validation failures, missing products, stale data, and schema markup issues. Ryze AI provides real-time ACP compliance monitoring with automatic issue resolution.

PriorityOngoing maintenance requirement

BenefitsCatches feed issues before they impact AI visibility

Common IssuesRequires monitoring infrastructure setup

ImplementationMonitor daily feed validation status and set up failure alerts

09Improves visual matching

Optimize Product Images for AI Recognition

Product images help AI agents visually represent your products in shopping conversations. ACP requires high-resolution images (minimum 800x800 pixels), but optimal images are larger and include multiple product angles.

Use clean white backgrounds, multiple product views, lifestyle shots, and detail images that show key features. Compress images for fast loading while maintaining quality. AI agents prefer images that clearly show the product without heavy text overlays or busy backgrounds.

PriorityMedium impact on click-through

BenefitsBetter visual representation in AI conversations

Common IssuesRequires high-quality product photography

ImplementationUse high-resolution images with white backgrounds and multiple angles

10Final verification step

Test and Validate Complete ACP Implementation

ACP testing validates your complete implementation against OpenAI's conformance requirements. This includes feed validation, schema verification, checkout flow testing, and inventory accuracy checks.

Submit test purchases through AI agents, verify product data accuracy, test inventory sync timing, and confirm checkout completion. OpenAI provides testing tools for validating your ACP implementation before approving your store for live AI shopping sessions.

PriorityEssential before going live

BenefitsConfirms everything works end-to-end

Common IssuesRequires access to OpenAI's testing environment

ImplementationRun full conformance tests and simulate AI agent shopping sessions

Sarah Chen

Ecommerce Director
Premium Electronics Store

★★★★★

“

Getting ACP compliant seemed overwhelming until Ryze automated the entire process. Our products went live in ChatGPT shopping within two weeks, and we're seeing 40% more traffic from AI agent referrals.”

+40%

AI agent traffic

2 weeks

Time to compliance

100%

Feed accuracy

How to fix common ACP validation failures?

Based on 200+ ACP implementations, here are the most common validation failures and their solutions:

47% of initial validation failures

Missing GTIN/UPC codes

For branded products: Contact manufacturers for official UPC/EAN codes
For private label: Purchase GTINs from GS1 or generate compliant codes
Temporary solution: Use MPN (manufacturer part number) with brand field

31% of validation failures

Incomplete product descriptions

Add use cases and benefits, not just features
Include dimensions, materials, and specifications
Use bullet points for easy AI parsing
Minimum 50 words for complex products, 25 for simple ones

23% of validation failures

Schema markup errors

Use JSON-LD format, not Microdata or RDFa
Include all required properties: name, image, offers, gtin, brand
Validate with Google's Rich Results Test
Ensure offers include price, currency, and availability

Pro tip: OpenAI's validation tests run daily at 3 AM PST. Fix issues before this window to avoid temporary delisting from AI shopping conversations. Ryze AI monitors validation status continuously and auto-fixes common issues before they impact your AI visibility.

200+ stores ACP compliant

Agencies trust Ryze for ACP

★★★★★4.9/5

Frequently asked questions

What is the ACP product-feed requirements for Shopify stores?

The Agentic Commerce Protocol (ACP) requires 23 core product fields including product_id, title, description, image_url, price, currency, availability, inventory_count, gtin, category, and enable_search/enable_checkout toggles. You also need schema.org Product markup and real-time inventory sync.

Do I need to build my own ACP feed endpoint?

No. Shopify's Agentic Storefronts automatically handles ACP compliance when you enable the ChatGPT channel. It submits your product data to OpenAI's endpoint and manages the protocol requirements. You just need to ensure your product data is complete.

How often does my ACP product feed need to update?

OpenAI requires feed updates at least every 15 minutes for inventory and pricing changes. Shopify Catalog automatically syncs updates from your admin within this timeframe. Daily product additions/removals are acceptable, but stock levels must stay current.

What happens if my ACP feed fails validation?

Failed validation temporarily removes your products from ChatGPT shopping conversations until issues are fixed. Common failures include missing GTINs, incomplete descriptions, or schema markup errors. OpenAI runs validation tests daily at 3 AM PST.

Can I control which products appear in AI shopping?

Yes, through the enable_search and enable_checkout boolean fields in your ACP feed. Set enable_search to false to hide products from AI discovery, or enable_checkout to false to allow browsing but prevent AI purchases. Shopify lets you manage this per product.

How long does ACP implementation take on Shopify?

Basic ACP compliance takes 1-2 weeks if your product data is complete. Most time is spent auditing and filling missing fields like GTINs and detailed descriptions. Stores using Ryze AI typically achieve compliance within days through automated data enhancement.

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