10 GMC Errors Blocking Your Product Approvals (And How to Fix Them)

Introduction

Every disapproved product in Google Merchant Center is a lost sale. Yet the majority of rejections are caused by 10 recurring mistakes — all preventable with the right practices.

This guide details each error, its real impact, and the fix to apply immediately.

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Error #1: Price Discrepancy Between Feed and Website

This is the most common error: the price in your GMC feed differs from the price shown on your product page.

Common causes:

• Promotions active on the site but not in the feed
• Sync delay between your e-commerce platform and GMC
• Misaligned tax-inclusive vs. tax-exclusive prices

Solution:

• Update your feed in real time or hourly
• Use the sale_price attribute for promotions in GMC
• Verify the page price matches the feed price field exactly

Quick checklist:

• Feed synced at least every hour
• sale_price attribute used for sales
• Taxes correctly included or excluded for the target country

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Error #2: Images Not Compliant with Google Standards

Google automatically rejects products with images that don't meet its criteria.

Most common violations:

• Image too small (< 100×100 px for clothing, < 100×100 px for other)
• Watermark or promotional text on the main image
• Non-white background for clothing
• Placeholder image or icon

Required standards:

• Non-clothing products: 800×800 px minimum
• Clothing: 250×250 px minimum (800×800 recommended)
• White background for most categories
• No text, logo, or watermark on the main image

Solution: Use the image diagnostic tool in GMC (Products → All products → Filter by "Image issue").

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Error #3: Missing or Invalid GTIN

Unique product identifiers (GTIN, EAN, UPC) are mandatory for all branded products sold across multiple stores.

Why it's critical:

• Without a valid GTIN: your products can't participate in Google price comparisons
• Fake GTIN: possible account suspension
• Missing GTIN for a known brand: automatic rejection

Solution:

• For known brands: obtain GTINs from your supplier
• For your own creations: use the identifier_exists: false attribute
• Validate your GTINs with the official GS1 validator

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Error #4: Prohibited Content in Title or Description

Prohibited content in titles and descriptions:

• Promotional text ("Best price", "Sale", "Discount")
• Excessive capitalization ("FREE SHIPPING")
• Unnecessary special characters (!!!, ★★★)
• Contact information (email, phone number, URL)
• Competitor comparisons

Solution: Re-read each title and description asking: "Is this a factual product description?" If not, fix it.

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Error #5: Broken or Inaccessible Destination URL

Google actively crawls your product pages. If the URL is broken, redirects to the homepage, or returns a 404 error, the product is automatically disapproved.

Checks to perform:

• ✅ URL returns a 200 status code (not excessive 301s or 302s)
• ✅ Product is visible without login required
• ✅ Page content matches the product in the feed
• ✅ Page doesn't block the Googlebot crawler

Tool: Use Google Search Console's URL inspection tool to test your product pages.

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Error #6: Missing or Incorrect Shipping Information

Since 2023, Google requires precise shipping information to display your products.

Required attributes:

• shipping: destination country, carrier, price
• shipping_weight: package weight (if weight-based pricing)
• shipping_label: for shipping rules by category

Solution:

1. In Merchant Center: Settings → Shipping and returns
2. Configure your shipping zones with precise rates
3. Add the shipping attribute in your feed for exceptions

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Error #7: Incorrect or Too Generic Product Category

Wrong categorization reduces visibility and can trigger rejections for categories requiring review (health, food, etc.).

Common problems:

• Too generic category (e.g., "Clothing" instead of "Clothing > Tops > T-Shirts")
• Category in the wrong language
• Using outdated category IDs

Solution:

• Use Google's official taxonomy (available for download)
• Always choose the most specific subcategory
• Update deprecated categories annually

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Error #8: Return Policy Not Configured

Since 2024, a missing return policy in GMC can cause significant visibility reduction.

Required configuration:

1. Merchant Center → Settings → Shipping and returns → Returns
2. Create a return policy with:
   • Return period (number of days)
   • Refund method
   • Eligibility conditions
3. Associate the policy with your products or your entire account

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Error #9: Incorrectly Configured Variant Attributes

For products with multiple variants (size, color), attribute errors can create duplicates or trigger rejections.

Common mistakes:

• Same item_group_id for unrelated products
• Inconsistent color or size attributes across variants
• No primary variant defined for images

Solution:

• Use a unique item_group_id per variant group
• Standardize color and size values (e.g., "Red" not "red", "RED", "rouge")
• Each variant must have its own specific image

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Error #10: Feed Not Updated Regularly

Google marks inactive or rarely updated feeds as unreliable.

Recommended frequencies:

• Store with fluctuating stock: update every hour
• Standard store: daily update
• Supplemental feed (promotions): real-time via Content API

Tools for automation:

• Google Sheets connected to GMC (simple, no code)
• RSS/XML feed generated by your platform (Shopify, WooCommerce)
• Content API for stores with thousands of products

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Quick Diagnostic: 15-Point Checklist

Feed & Data (5 points)

• Prices identical between feed and product pages
• Valid GTINs for all branded products
• Feed updated every 24h minimum
• No prohibited special characters in titles
• Destination URLs working (200 status code)

Images (3 points)

• All images > 800×800 px
• No watermark or text on main image
• White background for products requiring compliance

GMC Configuration (4 points)

• Shipping information configured and accurate
• Active return policy in GMC
• Google categories used (not just custom categories)
• GMC account linked to Google Ads

Advanced Compliance (3 points)

• No product with "Under review" status for > 7 days
• Feed quality score > 90%
• No content policy violations

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