Google Merchant Center Description Requirements — Fix Guide (2026)

What Google Requires in Product Descriptions

Google Merchant Center description requirements exist for one reason: to help shoppers make informed purchase decisions. Google uses your product description to verify that your feed data matches your landing page, to improve ad targeting accuracy, and to provide shopping context in expanded product listings.

A product with a detailed, accurate description gets approved faster, appears for more relevant searches, and converts better when clicked. A product with a thin or promotional description gets disapproved, receives limited visibility, or attracts the wrong clicks.

Here are the exact rules, the common mistakes, and how to fix descriptions across your catalog.

Description Length Guidelines

Google does not publish an official minimum word count, but their guidelines and enforcement patterns make the practical requirements clear.

Practical Minimums

• Absolute minimum: 1 character (Google accepts it but gives minimal relevance)
• Practical minimum for approval: 50-100 words. Below this, products frequently receive reduced visibility warnings.
• Recommended length: 150-300 words. This is the sweet spot for approval and ad relevance.
• Maximum: 5,000 characters (approximately 750-850 words). Google truncates anything beyond this.

What the Length Should Cover

A complete product description answers these questions in order:

1. What is it? — Product type, primary function (1-2 sentences)
2. What are the key features? — 3-5 features or benefits in prose form
3. What is it made of? — Material, ingredients, construction
4. What are the dimensions/specs? — Size, weight, capacity, technical specifications
5. What is included? — Packaging contents, accessories
6. Who is it for? — Target user, use case, compatibility

Example: Good vs Bad Description

Bad (23 words): "Great quality leather wallet. Perfect gift for men. Available in brown and black. Buy now and get free shipping!"

This description is too short, uses promotional language ("Buy now", "free shipping"), and lacks specific details.

Good (168 words): "The Bellroy Hide & Seek wallet is a slim bifold designed for everyday carry without the bulk. Made from environmentally certified leather with a water-resistant lining, it holds 5-12 cards in two quick-access slots and a hidden compartment behind the card section. A flat bill compartment fits folded bills or international currencies. Dimensions are 4.5 x 3.5 x 0.4 inches when closed. The RFID-blocking version includes a protective layer that prevents wireless card skimming. Available in Charcoal, Java, and Caramel colorways. Each wallet includes a 3-year warranty from Bellroy covering manufacturing defects. The Hide & Seek is best suited for people who carry 5 or more cards daily but want a pocket-friendly profile. Bellroy's leather is sourced from gold-rated Leather Working Group tanneries and is designed to develop a natural patina over time."

This description covers material, dimensions, features, warranty, use case, and sourcing — all information that helps both Google and shoppers.

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What to Avoid in Descriptions

Google enforces strict editorial policies on product descriptions. Violating these causes product-level disapprovals.

Prohibited Content

• Promotional language: "Sale", "Buy now", "Limited time offer", "Best price guaranteed", "Free shipping", percentage-off claims
• ALL CAPS text: Do not write descriptions in all capitals. Use standard sentence case.
• HTML tags: The description field in your feed must be plain text. HTML tags like <b>, <br>, <p> are not rendered and clutter the description.
• Links and URLs: Do not include website links in the description
• Comparisons to competitors: "Better than [competitor brand]" or "Unlike [competitor], we..."
• Unverifiable claims: "#1 rated", "best-selling", "award-winning" (unless you can prove it)
• Keyword stuffing: Repeating the same keyword multiple times to manipulate search matching. Google detects this and penalizes it.
• Irrelevant information: Product descriptions should describe the product, not your store, shipping times, or return policy

Content That Triggers Manual Review

• Health claims ("cures", "treats", "prevents") — these trigger Google's healthcare policy review
• Weight loss claims — heavily scrutinized
• "Before and after" language — triggers review
• Financial promises — "guaranteed returns", "make money"

Description Must Match the Landing Page

Google cross-references your feed description against your product landing page. Significant differences trigger a manual review or automatic disapproval.

What "Match" Means

Google does not require word-for-word identical text. But the description must accurately represent what is on the product page:

• Product features in the description must be visible on the landing page
• Material, size, and spec claims must match the product page details
• The product described must be the product shown on the page (not a different variant or version)

Common Mismatch Scenarios

• Description says "100% organic cotton" but the product page says "cotton blend" — disapproval
• Description mentions free shipping but the product page shows shipping charges — disapproval
• Description is for the product bundle but the landing page shows an individual item — disapproval

Shopify-Specific Description Strategy

Shopify stores face a unique challenge: the product description on your store page serves shoppers browsing your site, while the feed description serves Google's matching algorithms. These audiences need different content.

Option 1: Use the SEO Description Field

Shopify has a separate SEO description field that some feed apps use preferentially:

1. Go to Products > [Product]
2. Scroll to Search engine listing preview and click Edit
3. Write a feed-optimized description in the Meta description field (note: this field has a 320-character limit — too short for a full feed description)

Limitation: The SEO description field is only 320 characters, which is below the recommended 150-word minimum. This works for the meta description tag but is not ideal as a feed description source.

Option 2: Use the Full Product Description

The Shopify Google & YouTube channel uses your full product description (HTML stripped) as the feed description. Make your on-site description detailed enough for both audiences.

Best approach: Write your Shopify product description with both shoppers and Google in mind. Lead with benefit-focused copy for shoppers, then add detailed specs (material, dimensions, compatibility) that serve both audiences.

Option 3: Use a Supplemental Feed

For maximum control, override descriptions via a supplemental feed in Merchant Center:

1. Create a Google Sheet with id and description columns
2. Write Shopping-optimized descriptions (150-300 words, plain text, no promotional language)
3. Add as a supplemental feed in Merchant Center > Products > Feeds
4. Set it to update daily

This lets you keep brand-voice descriptions on your Shopify store while sending Google-optimized descriptions to Shopping.

Writing Descriptions at Scale

If you have hundreds or thousands of products, writing unique descriptions for each one is impractical. Here are strategies for scaling.

Template-Based Descriptions

Create description templates per product category, then fill in product-specific details:

Template for Apparel: "The [Brand] [Product Name] is a [product type] made from [material]. Features include [feature 1], [feature 2], and [feature 3]. Available in [colors]. Sizing: [size range]. [Care instruction]. [Brand] products are [quality/sourcing detail]."

Template for Electronics: "The [Brand] [Model] is a [product type] featuring [key spec 1], [key spec 2], and [key spec 3]. Dimensions: [L x W x H]. Weight: [weight]. Connectivity: [ports/wireless]. Compatible with [devices/systems]. Includes [box contents]. [Warranty information]."

AI-Assisted Descriptions

Use AI tools to generate initial descriptions from your product data, then review and edit for accuracy. Never publish AI-generated descriptions without verifying that every claim matches your actual product.

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Common Description Errors and Fixes

Error: "Description too short" or "Limited performance"

Cause: Description is under 50 words or is a single sentence.

Fix: Expand the description to at least 150 words covering product type, features, materials, dimensions, and use case.

Error: "Promotional text in description"

Cause: Description contains "Free shipping", "Sale", "Buy now", or percentage-off claims.

Fix: Remove all promotional language. Describe the product, not the deal. Move promotional messaging to your Merchant Center promotions or ad copy.

Error: "Description does not match landing page"

Cause: Feed description makes claims that the product page does not support.

Fix: Audit the description against the live product page. Remove or correct any claims that are not visible on the landing page.

Error: "Duplicate description"

Cause: Multiple products share the same description text. Google does not formally disapprove for this, but it reduces relevance and can trigger a data quality warning.

Fix: Write unique descriptions for each product. At minimum, change the product-specific details (name, color, size, model) even if the template structure is the same.

For title optimization strategies, see our title optimization guide. For complete feed optimization covering all attributes, see our product feed optimization guide. For GTIN and product identifier requirements, see our missing GTIN fix guide.