- my $warehouse = $::form->{import_warehouse} ne '' ? $::form->{import_warehouse} : "Transfer";
- my $bin = $::form->{bin_default} ne '' ? $::form->{bin_default} : "1";
+ my $warehouse = defined $::form->{import_warehouse} && $::form->{import_warehouse} ne '' ? $::form->{import_warehouse} : "Transfer";
+ my $bin = defined $::form->{bin_default} && $::form->{bin_default} ne '' ? $::form->{bin_default} : "1";