$form->{rowcount}--;
$form->{invdate} = $form->current_date(\%myconfig);
$form->{duedate} = $form->get_duedate(\%myconfig, $form->{invdate}) || $form->{invdate};
$form->{rowcount}--;
$form->{invdate} = $form->current_date(\%myconfig);
$form->{duedate} = $form->get_duedate(\%myconfig, $form->{invdate}) || $form->{invdate};