Cambiar el estado de un pedido en woocomerce desde funcion, actualizar estado pedido

$order = new WC_Order( ID );
$order->update_status( ‘wc-completed’ );

/*
‘wc-pending’ => _x( ‘Pending Payment’, ‘Order status’, ‘woocommerce’ ),
‘wc-processing’ => _x( ‘Processing’, ‘Order status’, ‘woocommerce’ ),
‘wc-on-hold’ => _x( ‘On Hold’, ‘Order status’, ‘woocommerce’ ),
‘wc-completed’ => _x( ‘Completed’, ‘Order status’, ‘woocommerce’ ),
‘wc-cancelled’ => _x( ‘Cancelled’, ‘Order status’, ‘woocommerce’ ),
‘wc-refunded’ => _x( ‘Refunded’, ‘Order status’, ‘woocommerce’ ),
‘wc-failed’ => _x( ‘Failed’, ‘Order status’, ‘woocommerce’ ),
*/