Back in Stock for WooCommerce

Gatemi Back in Stock for WooCommerce turns "out of stock" from a lost sale into a queue of people waiting to buy. A shopper leaves their address; when stock comes back they are emailed, once.

Nobody is emailed who did not ask. An address typed into a form is not proof of consent — anybody can type anybody's — so a signup starts unconfirmed and nothing is sent until a link in a message to that address is opened. A signed-in customer using their own address is taken at their word, because WordPress already confirmed it.

Nobody is emailed twice. Signing up is idempotent through a UNIQUE (product_id, email) index rather than a check a double tap can lose, and every send is *claimed* first — one statement that both selects the row and marks it sent, so a stock change that fires twice (and WooCommerce's stock hooks do) sends one email.

Nothing is sent inside your stock update. WooCommerce announces a restock in the request that saved the product — often an import or a bulk edit — and mailing two hundred people there is how "set stock to 40" becomes a timeout. Each change queues a sweep, and the sweep sends in batches, re-reading stock so nobody is sent to a page where the last unit has already gone.

And it tells you what to reorder. The settings screen opens on the demand report: the products people are waiting for, most-waited-for first, with how many sales are waiting on each.

Features

• Signup form on out-of-stock products, with the address pre-filled for signed-in customers
• Double opt-in with a confirmation email (switchable)
• One email per person per product, claimed before sending
• Unsubscribe link in every email — and unsubscribing deletes the row
• Your own button text, subject and message, with {product}, {site} and {link}
• Demand report: what to reorder, in order
• Batched sending you can size, on WordPress' own cron

Every license includes

• One year of updates and priority support, delivered straight to your WordPress dashboard.
• Use on 1, 5 or 25 sites depending on your license — local, staging and development sites are always free.
• 30-day money-back guarantee — full refund, no questions asked.
• Keeps working after expiry — if you choose not to renew, the plugin keeps running exactly as installed; it simply stops receiving updates and support until you do.

Requires WordPress 6.4+ · PHP 7.4+ · tested up to WordPress 7.0. Works with the classic and block checkout alike.