# valid in both the tax and non-tax cases
my $join_cust =
- " LEFT JOIN cust_bill USING (invnum)".
+ " LEFT JOIN cust_bill ON (cust_bill_pkg.invnum = cust_bill.invnum)".
# use cust_pkg.locationnum if it exists
FS::UI::Web::join_cust_main('cust_bill', 'cust_pkg');