ayac2002

Since the plugin doesn’t work at all, you’ll have to modify your functions.php file. Make sure you have access to that!

This has a good explanation and workaround as well for WooCommerce 2.2+: http://www.sellwithwp.com/woocommerce-custom-order-status-2/

I added two custom order statuses. Just copy this section and change the names:

register_post_status( 'wc-awaiting-shipment', array(
        'label'                     => 'Awaiting shipment',
        'public'                    => true,
        'exclude_from_search'       => false,
        'show_in_admin_all_list'    => true,
        'show_in_admin_status_list' => true,
        'label_count'               => _n_noop( 'Awaiting shipment <span class="count">(%s)</span>', 'Awaiting shipment <span class="count">(%s)</span>' )
    ) );

Then copy line 26 and change the names:

$new_order_statuses['wc-awaiting-shipment'] = 'Awaiting shipment';

To properly register the custom order statuses, I had to change the affected orders to a default status (on-hold is a good one), move over my functions.php file, deactivate all of my plugins, then reactivate them. THEN save the affected orders accordingly.

I would experience the WooCommerce infinite loop bug when saving the new order statuses if I didn’t do that, then my orders disappeared in the front-end. It’s mentioned in the comments, haha.