The short answer
Prioritise stable category demand, useful product information and controlled indexation. Define platform rules for filters, variants, availability and discontinued products before catalogue scale creates thousands of low-value URLs.
Map the buying architecture
Connect products to categories and subcategories people understand. Create indexable filter combinations only where distinct demand, useful inventory and a stable purpose exist.
Control crawl and duplication
Document parameter, canonical, pagination, internal search and faceting rules. Test the real platform output because app and theme behaviour can override CMS expectations.
Improve product usefulness
Use accurate specifications, compatibility, dimensions, availability, delivery, returns, media and genuine evidence. Avoid repeating supplier descriptions across the catalogue.
Handle product lifecycle
Define treatments for temporary stock loss, recurring items, permanent discontinuation and close replacements. Preserve useful category paths even as individual products change.
Measure commercial contribution
Review organic category and product landings alongside product views, basket actions, checkout, revenue, returns and margin where responsibly available.
Primary sources used
External guidance is linked so you can check the current source and context directly.