# create purchase delivery order from purchase order
my $purchase_delivery_order = $purchase_order->convert_to_delivery_order;
is($purchase_order->closed, 0, 'purchase order is open');
# create purchase delivery order from purchase order
my $purchase_delivery_order = $purchase_order->convert_to_delivery_order;
is($purchase_order->closed, 0, 'purchase order is open');