sitesourced

If it’s put in the Order Notes field, then in the Woocommerce e-mail settings you can have it automatically send an e-mail when a new note is created. You’ll have to set the notes to “Customer Note” as default instead of Private. To do this, go to Appearance > Theme Editor > functions.php and add the following code:

// Set customer notes as the default order note
function sv_default_customer_order_note() {
    if ( is_admin() ) {
        wc_enqueue_js('
            jQuery("select#order_note_type").val("customer");
        ');
    }
}
add_action( 'admin_init', 'sv_default_customer_order_note' );

This turned out to be a php error for me. It was corrected by switching from php version 7 to a 5 series version.