Product Feed
A product feed is a structured data source used to send product information from an e-commerce system to another platform.
Feeds allow external systems to receive catalogue information without requiring it to be entered manually for every product.
What a Product Feed Can Contain
A product feed may contain:
- Product identifier
- Title
- Description
- Product URL
- Image
- Price
- Availability
- Brand
- GTIN
- SKU
- Shipping data
- Product category
The required fields depend on the receiving platform.
Google Merchant Center, for example, supports product information through connected e-commerce platforms, files, spreadsheets, and APIs. Google Merchant Center's data-source documentation
What Product Feeds Are Used For
Product feeds may supply:
- Shopping platforms
- Advertising systems
- Marketplaces
- Comparison engines
- Social-commerce platforms
- Retail partners
- Local inventory systems
The product catalogue remains the original business data.
The feed is a representation prepared for another system.
Product Feed vs. Structured Data
A product feed and Structured Data can contain similar product information.
But they are delivered differently.
Product feed → sends product information directly to another platform.
**Structured Data** → embeds machine-readable information in the web page itself.
Google supports both approaches. Its Merchant Center documentation describes product data sources, while Search Central documents Product and Offer structured data placed on product pages. Google's merchant-listing structured-data documentation
The underlying product concepts are also represented through Schema.org Product and Schema.org Offer.
Why It Matters
Feeds let one Product Catalogue support several external channels.
Without a feed, staff may manually maintain:
- Website product
- Google listing
- Marketplace listing
- Advertisement
- Local inventory listing
That creates several opportunities for prices and availability to drift apart.
Product Data Quality
Google's Merchant Center documentation describes product files as collections of attributes such as title, price, availability, image, ID, and product identifiers. Google's product-file documentation
That illustrates an important principle:
The feed can only be as reliable as the underlying catalogue data.
If product information is incomplete or inconsistent internally, distribution exposes those problems rather than fixing them.
Common Problems
Common feed problems include:
- Stale price
- Incorrect availability
- Duplicate products
- Invalid identifiers
- Missing images
- Feed categories not matching the catalogue
- Variants mapped incorrectly
- Product URLs changing
- Feed updates failing silently
- Different platforms receiving different versions of the same product
How to Improve
Treat the Product Catalogue as the source.
Map its structured fields to each destination's required attributes.
Automate updates where practical and monitor feed errors.
When availability changes quickly, the synchronization frequency should reflect the real inventory risk.