curoagency

WooCommerce sends an email to the store admin every time an item is placed on backorder. There is no built-in toggle to disable this — the only options in WooCommerce → Settings → Emails control the email template, not whether it sends at all.
This plugin removes that notification cleanly, with no options page and no bloat.
What it does:
<ul>
<li>Prevents the “Product Backorder” admin notification email from being sent</li>
<li>Has no effect on any other WooCommerce emails</li>
<li>Does not affect the customer’s order confirmation or any other customer-facing emails</li>
<li>Works automatically on activation — no configuration required</li>
</ul>
Who is this for?
Store owners who use backorders as a standard fulfilment method and find the admin notification emails unnecessary or disruptive. If your warehouse team or fulfilment process handles backorders without needing an email trigger, this plugin removes the noise.

Disable WooCommerce Backorder Emails

Stops WooCommerce from sending backorder notification emails to the admin. No settings needed — just activate and it works.

jeffrey-wp

The best management plugin for backorders in WooCommerce. View reports with products and orders in backorder, manage backorder email notifications. You can also export all backorders to a CSV file.
<h4>Features</h4>
<ul>
<li>View report ‘Products On Backorder’ in WooCommerce (with export option)</li>
<li>View report ‘Orders with Backorders’ in WooCommerce (with export option)</li>
<li>Show number of backorders in order on order overview page</li>
<li>Manage backorder email notifications</li>
<li>Select which (WooCommerce or custom) order statuses appear on ‘Orders with Backorders’ report</li>
<li>Export backorders to CSV</li>
<li>Multilanguage ready</li>
</ul>
<h4>Extra Pro Features</h4>
<ul>
<li>Set the maximum allowed number of backorders for a product and product variation</li>
<li>When the maximum allowed number of backorders is reached the stock status will switch to ‘Out of stock’</li>
<li>Show products available for backorder on product overview page</li>
<li>Show maximum backorders in sortable column on product overview page</li>
<li>Option to show available backorder items in shop when backorder notification is enabled</li>
<li>Option to show custom backorder description on product page and cart</li>
<li>Try <a href="https://1.envato.market/c/1206953/275988/4415?subId1=wcbm&subId2=readme&u=https%3A%2F%2Fcodecanyon.net%2Fitem%2Fwoocommerce-backorder-manager%2F19624014" rel="nofollow ugc">WooCommerce Backorder Manager Pro</a> – 100% money back guarantee</li>
</ul>

WooCommerce Backorder Manager

Excellent plugin for an overview of all backorders in WooCommerce. Also I finally have an option to stop all those annoying automatic backorder mail notifications at once.

Great plugin

View WooCommerce reports with products and orders in backorder, CSV export for backorders, manage backorder email notifications.

Disable WooCommerce Backorder Emails vs WooCommerce Backorder Manager