# Features — Easy License Manager for WooCommerce Everything required to sell licensed software. From the key minted on purchase to the frozen API your deployed software depends on — a complete, HPOS-native licensing system. **Requirements:** WordPress 6.9+ · PHP 8.1+ · WooCommerce 6.0+ (tested to 10.8) · HPOS compatible · GPL-2.0-or-later ## Selling & licensing — turn any product into a license - **Automatic license keys** — A key is minted for every downloadable item the moment an order completes — emailed to the customer and shown in My Account. A refund inactivates it; deleting the order item deletes it. - **Product version management** — Upload new versions from the product editor. Each is stored with a version-history record (requires/tested, changelog, major flag), so the updater can serve the latest build. - **Secure, gated downloads** — Packages live under a deny-all uploads directory and are served only to a logged-in owner with an active license, through a path-traversal-safe resolver. ## The APIs your software uses — a frozen contract The customer's software talks to the store to activate, validate, check for updates and download. Slugs, parameters, response shapes and error codes never change. - **License activation API** — Activates a key for a site and returns a per-activation salt, reporting activation and validation state through stable error codes (the frozen 20000–20101 range). - **Software update API** — Single and bulk update checks, plugin-information responses, and the latest-version binary download. Note: its error response is `serialize()`-encoded, not JSON. ## For your customers and you - **My Account → Licenses** — Customers see each license key, the latest available version, "X of Y activations", the expiry date, a download link, and every site activation — with a remove link. - **Activation management** — Customers remove their own site activations; the remove link carries a sacred per-activation nonce verified server-side. - **Admin screens** — Review every activation and license-owning customer under WooCommerce → Easy License Manager: Activations, Customers (with per-customer license info) and Settings. ## Subscriptions — license status that follows the subscription When a subscription changes, the matching license keeps pace automatically. - An active subscription keeps the license active. - On-hold, expired or cancelled → the license expires. - The next-payment date drives the license expiration date. - "Needs payment" inactivates the license. Engines: **WooCommerce Subscriptions**, **Advanced Subscriptions for WooCommerce**, and a pluggable layer to add more without core changes. No subscription engine? Licenses still work for one-off sales through the built-in fallback. ## For developers — query and extend, four ways A read-only query API over four channels (PHP, REST Abilities, WP-CLI, MCP) — all answering identically from one redacting source of truth — plus neutral hooks and a pluggable subscription provider to extend behaviour without forking. See the [Developer reference](https://easylicensemanager.joseconti.com/developers.md). ## Trust & safety - **Strict output redaction** — The activation salt is never exposed; the license key is shown only to its owner or a capability holder. - **Application Passwords** — Remote REST and MCP access uses standard WordPress Application Passwords — no separate auth scheme. - **Privacy-first** — The plugin makes no external calls. - **HPOS-native** — Built on the WC_Order API throughout. - **Idempotent installer** — Tables are created on activation and never dropped or altered if they already exist. - **Opt-in Danger Zone** — Uninstalling deletes nothing by default; total removal requires ticking the box and typing DELETE.