add new woocommerce order status programmatically
add_action( 'init', 'register_my_new_order_statuses' );
function register_my_new_order_statuses() {
register_post_status( 'wc-order-shipped', array(
'label' => _x( 'Shipped', 'Order status', 'woocommerce' ),
'public' => true,
'exclude_from_search' => false,
'show_in_admin_all_list' => true,
'show_in_admin_status_list' => true,
'label_count' => _n_noop( 'Shipped <span class="count">(%s)</span>', 'Shipped<span class="count">(%s)</span>', 'woocommerce' )
) );
}
add_filter( 'wc_order_statuses', 'my_new_wc_order_statuses' );
// Register in wc_order_statuses.
function my_new_wc_order_statuses( $order_statuses ) {
$order_statuses['wc-order-shipped'] = _x( 'Shipped', 'Order status', 'woocommerce' );
return $order_statuses;
}