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When stock returns, they get an email.\n\nStandalone-first — works on any Magento 2.4.4+ install without other ETechFlow modules. Integrates richer when paired with NDE / BED / ISP.\n\n## Install\n\n```bash\ncomposer require etechflow/module-back-in-stock-notification:^1.0\nbin/magento module:enable ETechFlow_BackInStockNotification\nbin/magento setup:upgrade\nbin/magento setup:di:compile\nbin/magento cache:flush\n# Restart php-fpm to clear OPcache (mandatory on prod with opcache.validate_timestamps=0)\n```\n\n## Activate the licence\n\n```bash\nphp tools/generate-license.php --module=back-in-stock-notification --host=\u003cyour-domain\u003e\n```\n\nPaste the key into **Stores → Configuration → eTechFlow → Back-in-Stock Notification → License Key**.\n\nFor multi-module customers, paste the bundle key into the **Bundle License Key** field instead. One key activates every ETechFlow module installed on the host.\n\n## Verify\n\n```bash\nbin/magento etechflow:bisn:verify\n```\n\nTwelve PASS lines means you're good to go.\n\n## How it works\n\n1. **Customer hits an out-of-stock PDP** → a \"Notify me when back in stock\" form replaces the disabled Add-to-Cart button.\n2. **Form submit** → `etechflow_bisn_subscription` row created. Anonymous (email only) or customer-linked.\n3. **Merchant saves stock with qty \u003e 0** → `StockSaveObserver` enqueues a notification for every subscription matching that product + store.\n4. **Cron runs every 5 min** → `QueueConsumer` sends batched, rate-limited emails. Default 60 emails/minute.\n5. **Customer clicks the email** → one-click unsubscribe (RFC 8058 compliant) OR goes to the PDP to purchase.\n\n## Configuration\n\n`Stores → Configuration → eTechFlow → Back-in-Stock Notification`:\n\n- **License Key** — per-module key (or use Bundle License Key for the suite)\n- **Module Enabled** — toggle the whole feature\n- **Email Rate Limit** — emails/minute (default 60). Adjust to your SMTP capacity.\n- **Subscription Lifetime** — auto-expire unredeemed subscriptions after N days (default 180, 0 = never)\n- **eTechFlow Suite Integrations** — NDE / BED / ISP opt-in toggles (hidden if the sibling module isn't installed)\n- **Notifications** — sender email, sender name, email subject template\n\n## Compatibility\n\n- Magento Open Source 2.4.4 – 2.4.8\n- Adobe Commerce 2.4.4 – 2.4.8\n- PHP 8.1 / 8.2 / 8.3 / 8.4\n- Hyvä Theme + Hyvä Checkout (PDP form renders via Hyvä-safe block)\n\n## Support\n\ninfo@etechflow.com — please include your license key + Magento version when reporting issues.\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fetechflow%2Fmodule-back-in-stock-notification","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fetechflow%2Fmodule-back-in-stock-notification","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fetechflow%2Fmodule-back-in-stock-notification/lists"}