Product Feeds

How Merchant Center attribute rules (formerly feed rules) work: data source operations, modifications, conditions, testing, rule order and examples.

How supplemental data sources work in Merchant Center: the add-on they need, ID and feed label matching, limits, Take latest and regional inventory.

How to handle out-of-stock, preorder, backorder and discontinued products in Merchant Center, and when to use pause or excluded_destination instead.

How to submit sale prices to Merchant Center: sale_price rules, effective dates and timezones, strikethrough pricing, coupons, loyalty prices and markup.

How to submit product variants to Merchant Center: item_group_id rules, unique IDs, variant URLs, images, per-variant availability and structured data.

What GTINs, MPNs and brands are, the GTIN types (UPC, EAN, JAN, ISBN), how they differ from your SKU, and how Google uses them in Merchant Center.

Write Google Shopping product titles and descriptions that follow Google’s rules: character limits, what to avoid, structured_title for AI text, and examples.

A Google product feed checklist covering data sources, IDs, titles, images, prices, identifiers, variants and shipping, plus a repeatable feed QA routine.

Build a Google Shopping product feed step by step: choose a data source, fill each attribute correctly, name and encode the file, and set update timing.

What a Google product feed (data source) is, the ways to submit one, required attributes, primary vs supplemental sources, and how feeds match your site.