StockNotify

Yes. When a shopper selects a variation that is out of stock, the subscription form appears automatically for that specific variation. If a different, in-stock variation is selected, the form is hidden again.

Yes. As soon as WooCommerce marks a product or variation as back in stock, every subscriber who is still waiting for it is emailed automatically. Sending happens a short time after the stock change (via WP-Cron) so that saving a product or processing an order is never slowed down by the outgoing emails. Each subscriber is only notified once per subscription.

Yes. It’s a normal WooCommerce email, so it appears under WooCommerce > Settings > Emails, where you can change the subject, heading, additional text, and switch between HTML and plain text. To change the layout itself, copy templates/email/back-in-stock.php (and, for plain text, templates/email/plain/back-in-stock.php ) from the plugin into yourtheme/stocknotify/email/ .

Turn off “Show the form automatically on product pages” under WooCommerce > StockNotify > Settings, then add the “Back in Stock Notify” block in the editor or the Site Editor, or use the [stocknotify] shortcode ( [stocknotify product_id="123"] for a specific product). The form only appears for out-of-stock products.

Every notification email contains an unsubscribe link, and supporting mail clients show their own unsubscribe button. The link opens a confirmation page; confirming removes that email address from every waiting list and deletes its stored subscriptions. Links are signed, so they cannot be forged for someone else’s address.

Open WooCommerce > StockNotify > Demand. Products are ranked by the number of customers waiting. For variable products, each out-of-stock variation with waiting customers is listed under its parent with its own count and stock status.

In a dedicated database table created on activation, separate from WooCommerce’s own tables. You can browse, search, delete and export them to CSV under WooCommerce > StockNotify.