if ($form->{type} eq 'purchase_delivery_order') {
IR->retrieve_item(\%myconfig, $form);
if ($form->{type} eq 'purchase_delivery_order') {
IR->retrieve_item(\%myconfig, $form);
$vc_discount = $form->{vendor_discount};
} else {
IS->get_customer(\%myconfig, \%$form);
$vc_discount = $form->{vendor_discount};
} else {
IS->get_customer(\%myconfig, \%$form);