Let shoppers subscribe to out-of-stock products and automatically notify them by email when items are back in stock.

cartengine

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.
<h3>How It Works</h3>
<ol>
<li>A visitor lands on an out-of-stock product page</li>
<li>They enter their email and click “Notify Me When Available”</li>
<li>You restock the product (manually or via import)</li>
<li>The plugin automatically sends a back-in-stock email to all subscribers</li>
<li>The customer clicks the link and completes their purchase</li>
</ol>
<h3>Key Features</h3>
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 <code>[safw_stock_alert]</code> 
Place the subscription form anywhere using the <code>[safw_stock_alert]</code> shortcode. Supports <code>product_id</code> and <code>variation_id</code> 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.
<h3>Why Choose CartEngine Back in Stock Alerts for WooCommerce?</h3>
<ul>
<li>Lightweight — zero dependencies, no jQuery plugins, no external scripts</li>
<li>WooCommerce-native — settings live inside WooCommerce, not a separate menu</li>
<li>Works with any theme — block themes (Twenty Twenty-Five) and classic themes</li>
<li>Developer-friendly — hooks and filters to customize behavior</li>
</ul>
<h3>Upgrade to Stock Alert Pro</h3>
<a href="https://cartengine.dev/products/stock-alert-pro/?utm_source=wporg&utm_medium=readme&utm_campaign=free" rel="nofollow ugc">Stock Alert Pro</a> extends the free plugin with powerful conversion tools:
<ul>
<li>📊 Demand Analytics Dashboard — see which products generate the most waitlist demand</li>
<li>🎯 Smart Stock-Limited Notify — alert subscribers only when stock covers their demand</li>
<li>💬 Popup/Modal Mode — capture emails with a lightbox form instead of inline</li>
<li>✉️ Multiple Email Templates — choose from several professionally designed templates</li>
<li>📈 Conversion Tracking — measure how many subscribers actually purchase</li>
<li>📤 CSV Export — download your subscriber list for any use</li>
<li>🔐 Double Opt-In — confirm subscriptions for cleaner lists and full GDPR compliance</li>
<li>🔔 Admin Digest Emails — daily/weekly summary of new subscriptions and conversions</li>
</ul>
<a href="https://cartengine.dev/products/stock-alert-pro/?utm_source=wporg&utm_medium=readme&utm_campaign=free" rel="nofollow ugc">Upgrade to Stock Alert Pro →</a>

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