Some products should stop showing on a set date: seasonal items, limited-time drops, flash sales, event products, and food past its best-before date. Removing them by hand is easy to forget. Metafield Expiry schedules it for you: add a date or date-time metafield to a product, choose to unpublish, set to draft, or archive, and the app checks hourly and acts when the date passes. Shopify Flow can't compare date metafields, so this usually needs code. Set values with the Bulk Editor or CSV import.