Merchant Center
Google's platform for managing product feeds that appear in Shopping results and AI.
Google Merchant Center is the platform where you upload product data so it appears in Google Shopping, free product listings, and increasingly in AI-driven shopping experiences. It's the bridge between your webshop and Google's commerce ecosystem.
Product feeds
You supply product data via a feed (XML, CSV, or API) with required fields like title, description, price, availability, image URL, and GTIN. Feed quality directly determines your visibility: correct categorization, current prices, and high-quality images are essential.
Merchant Center and AI
Google is increasingly integrating Merchant Center data into AI answers. Product questions in Google's AI Overview — bibliotheekterm and Shopping Graph are answered with data from Merchant Center feeds. This makes an optimized product feed an AEO — bibliotheekterm instrument.
Feed specification: required and recommended fields
A complete product feed contains required fields (without these your product will be disapproved) and recommended fields (that improve your visibility and quality score).
| Field | Status | Description | Example |
|---|---|---|---|
id | Required | Unique identifier per product (max 50 characters) | SKU-12345 |
title | Required | Product title (max 150 characters). Place keywords at the front. | Nike Air Max 90 Men's White Size 9 |
description | Required | Product description (max 5,000 characters). No HTML. | Describe features, material, usage. |
link | Required | URL to the product page. Must match the canonical. | https://example.com/product/nam90 |
image_link | Required | URL of the main image. Min. 100x100 px, max. 16 MB. | HTTPS URL to image |
price | Required | Price including currency. Must match the landing page. | 129.99 USD |
availability | Required | Availability status. | in_stock, out_of_stock, preorder |
brand | Required* | Brand name. Required for all branded products. | Nike |
gtin | Required* | EAN/UPC code. Required if one exists for the product. | 1234567890123 |
condition | Required | Product condition. | new, refurbished, used |
additional_image_link | Recommended | Additional images (max 10). More images = better conversion. | URL per additional image |
sale_price | Recommended | Sale price. Shows strikethrough original price. | 99.99 USD |
product_type | Recommended | Your own categorization. Helps Google better place your product. | Shoes > Men's > Running |
google_product_category | Recommended | Google's own taxonomy ID. | 187 (Shoes) |
color | Recommended | Product color. Important for apparel filters. | White/Black |
size | Recommended | Size. Required for apparel and shoes. | 9 |
shipping | Recommended | Shipping costs. Shows shipping info directly in Shopping. | US::Standard:0.00 USD |
return_policy_label | Recommended | Return policy label, linked to policy in Merchant Center. | 30_days_free |
* Required when applicable to the product.
Feed optimization tips
- Optimize titles: put the most important keyword first. Formula: Brand + Product Type + Key Feature + Size/Color. Example: "Nike Air Max 90 Running Shoes Men's White Size 9".
- Maximize descriptions: use the full 5,000 characters. Start with the most important product features. Avoid generic text and don't copy the manufacturer description.
- Image quality: use white background, minimum 800x800 px, no watermarks or text over the image, and show the product from the best angle.
- Always fill in GTIN: products with GTIN get priority in search results. Without GTIN, your product is marked as "limited".
- Keep prices current: synchronize your feed at least once daily. Price discrepancies between feed and landing page lead to disapproval.
- Use custom labels: add
custom_label_0throughcustom_label_4to segment products for campaigns (e.g., "bestseller", "high-margin", "season-winter"). - Real-time inventory status: use the Content API for real-time inventory updates instead of daily feed uploads. Prevents advertising out-of-stock products.
- Add promotions: use the promotions feed to make offers and discount codes visible in Shopping results.
- Make product type specific: use multiple levels in
product_type(at least 3 levels deep). This helps Google better understand and categorize your product. - Check feed diagnostics regularly: review the diagnostics tab in Merchant Center weekly. Resolve warnings proactively before they lead to disapprovals.
Frequently asked questions
Is Google Merchant Center free?
Yes, Google Merchant Center is free to use. Your products can appear in free product listings (Shopping tab) and in organic search results. For paid Shopping ads (formerly Google Shopping Ads), you also need a Google Ads account, for which you pay per click.
How often should I update my product feed?
At minimum once per day for most webshops. For webshops with frequent price changes or rapidly changing inventory, multiple times per day or real-time via the Content API is recommended. Google can automatically fetch feeds up to 4 times per day if you use a URL feed. Products that haven't been updated for more than 30 days are automatically removed.
What is the difference between Merchant Center and Merchant Center Next?
Merchant Center Next is the renewed version of the platform, launched in 2023. It features a simplified interface, automatic product detection from your website, and improved integration with Google Ads. All new accounts automatically get Merchant Center Next. Existing accounts are being gradually migrated. The feed specifications and APIs remain largely the same.
Can I use Merchant Center without a webshop?
No, you need a working webshop with product pages where customers can purchase products. The products in your feed must match what's for sale on your website. Google verifies this and disapproves products if the landing page doesn't meet requirements (e.g., no buy button, different price, unreachable page).
How do I fix common feed errors?
The most common errors are: price mismatch (synchronize feed and website price), missing GTIN (add EAN codes or request exemption for unique products), image too small (use minimum 100x100 px, ideally 800x800 px), unreachable landing page (check for 404 errors and redirects), and automatic item disapproval (check the diagnostics tab for specific reasons per product).
