Woocommerce: Disable email notification for single orders once order status changes with checkbox.

This is a cool customization that can be useful for WooCommerce store admins, especially when they do manual order status changes via the Orders admin page.

As you know, each order status change triggers an order email (“processing”, “completed”, “on-hold”, etc.), and sometimes the store manager doesn’t want to resend them after each edit.

In this quick tutorial, we will see how to add a checkbox to the single order edit page, so that emails are disabled as long as the checkbox is kept checked. Enjoy!