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.

wpheka

akshayaswaroop

WC Backorder Split is a free WooCommerce extension that automatically creates a separate order with status “Backordered” for the products that you don’t have in stock (Products on backorder).
<h4>Key Features</h4>
<ul>
<li>Automatic Order Splitting – Automatically splits orders when products are on backorder</li>
<li>Complete Order Data Transfer – Copies shipping methods, payment info, fees, coupons and taxes to backorder</li>
<li>Order Relationship Tracking – Links parent and backorder orders for easy reference</li>
<li>Custom Order Status – Adds “Backordered” status to WooCommerce</li>
<li>Order Notes – Automatically adds notes explaining the split to both orders</li>
<li>Admin Interface – Shows linked orders directly in order details page</li>
<li>HPOS Compatible – Full support for WooCommerce High-Performance Order Storage</li>
<li>Developer Friendly – Extensive hooks and filters for customization</li>
</ul>
<h4>Developer Features</h4>
Developers can extend the plugin using built-in hooks:
<ul>
<li><code>wcbs_before_split_order</code> – Action before order splitting</li>
<li><code>wcbs_after_split_order</code> – Action after order splitting</li>
<li><code>wcbs_backorder_created</code> – Action when backorder is created</li>
<li><code>wcbs_split_order_error</code> – Action on split error</li>
<li><code>wcbs_should_split_order</code> – Filter to prevent splitting</li>
<li><code>wcbs_backorder_items</code> – Filter to modify backorder items</li>
<li><code>wcbs_backorder_status</code> – Filter to change backorder status</li>
<li><code>wcbs_meta_fields_to_copy</code> – Filter to add/remove meta fields copied to backorder</li>
<li><code>wcbs_disable_emails_on_split</code> – Filter to control email suppression during split</li>
</ul>
If you enjoyed this plugin then please put a review, that will encourage me to bring some more …

WC Backorder Split

A simple plugin that helps you split the WooCommerce order for the products that you do not have in stock.

Disable WooCommerce Backorder Emails vs WC Backorder Split