Felix Serial Number Warranty and License For WooCommerce lets you assign a unique serial number to each unit of a WooCommerce product — automatically at checkout, or by hand from a pre-generated pool — and gives you a dedicated admin screen to search, filter, and manage every serial number you’ve ever issued.
Free features:
Pro features (sold separately): license key activation with configurable triggers (immediate, on order completion, customer self-activation, or your own external system via a REST API), license renewals, warranty tracking with warranty extensions, per-product custom auto-generation rules, keeping WooCommerce stock in sync with your serial number pool, bulk generation, CSV import/export, printable order slips, manually resending a serial/license/warranty notification email, and outbound webhooks for your own integrations.