For each sampled product, compare the visible page, structured product data, and feed record. Check the regular and sale price, currency, availability, product URL, image, title, brand, identifier, and selected variant. Add shipping and return information when it is part of the offer shown to customers.
Google's product documentation distinguishes individual product pages from category pages and recommends keeping merchant product data complete. It also notes that dynamically generated product markup can be less reliable for fast-changing price and availability information, so test the rendered product page rather than assuming the template is enough.
Keep it consistent
- Price: current price, currency, sale duration, and the page's visible offer agree.
- Availability: the feed, markup, and product page reflect the same purchasable state.
- Variants: each selectable option maps to the right price, image, URL, and identifier.
- Policies: shipping and return information is accurate where it is presented to shoppers.