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② 後台搜尋「CartEngine Back in Stock Alerts for WooCommerce」→ 直接安裝（推薦）
原文外掛簡介
CartEngine Back in Stock Alerts for WooCommerce helps recover sales from out-of-stock products. Instead of losing customers forever, let them subscribe with one click and automatically email them when you restock.
No complicated setup. No bloat. Just a clean “Notify Me” form, reliable email delivery, and a simple subscriber dashboard right inside WooCommerce.
How It Works
A visitor lands on an out-of-stock product page
They enter their email and click “Notify Me When Available”
You restock the product (manually or via import)
The plugin automatically sends a back-in-stock email to all subscribers
The customer clicks the link and completes their purchase
Key Features
Back-in-Stock Notifications
Automatically triggered when product stock status changes to “in stock” — no manual work needed. Emails are sent in batches of 50 with configurable throttle to protect your server.
AJAX Subscription Form
The “Notify Me” form submits without a page reload. Displays directly on the product page — no extra pages, no popups, no friction.
Variable Product Support
Customers can subscribe to specific variations (size, color, etc.). When you restock a particular variation, only subscribers to that variation receive the notification.
Shortcode [safw_stock_alert]
Place the subscription form anywhere using the [safw_stock_alert] shortcode. Supports product_id and variation_id attributes for full flexibility.
Subscriber Management
View and manage all subscribers from WooCommerce → Stock Alert Subscribers. Filter by status (active, notified, unsubscribed), sort by date or email.
Spam & Abuse Protection
Built-in IP-based rate limiting (5 subscriptions per IP per hour) keeps your list clean without any configuration.
Unsubscribe Link in Every Email
Every notification email includes a one-click unsubscribe link. No account required. GDPR-friendly by design.
Customizable Email & Form
Configure button text, form label, email subject, sender name, and accent color directly in WooCommerce → Settings → Stock Alerts.
Social Proof Counter
Optionally show how many people are waiting for a product (“12 people are waiting for this item”). Creates urgency and encourages subscriptions.
GDPR & Privacy Ready
Integrates with WordPress’s built-in Personal Data Export and Erase tools. Subscriber data stays on your server — no third-party services.
Why Choose CartEngine Back in Stock Alerts for WooCommerce?
Lightweight — zero dependencies, no jQuery plugins, no external scripts
WooCommerce-native — settings live inside WooCommerce, not a separate menu
Works with any theme — block themes (Twenty Twenty-Five) and classic themes
Developer-friendly — hooks and filters to customize behavior
Upgrade to Stock Alert Pro
Stock Alert Pro extends the free plugin with powerful conversion tools:
📊 Demand Analytics Dashboard — see which products generate the most waitlist demand
🎯 Smart Stock-Limited Notify — alert subscribers only when stock covers their demand
💬 Popup/Modal Mode — capture emails with a lightbox form instead of inline
✉️ Multiple Email Templates — choose from several professionally designed templates
📈 Conversion Tracking — measure how many subscribers actually purchase
📤 CSV Export — download your subscriber list for any use
🔐 Double Opt-In — confirm subscriptions for cleaner lists and full GDPR compliance
🔔 Admin Digest Emails — daily/weekly summary of new subscriptions and conversions
Upgrade to Stock Alert Pro →
