if ( $self->serialnum ) {
my @dup_serial;
- @dup_serial = $self->find_duplicates('global', 'serialnum');
+ @dup_serial = $self->find_duplicates('global', 'modelnum', 'serialnum');
if ( @dup_serial ) {
return "Serial number in use (svcnum ".$dup_serial[0]->svcnum.")";
}