$self->ut_numbern('detailnum')
|| $self->ut_foreign_key('pkgnum', 'cust_pkg', 'pkgnum')
- || $self->ut_foreign_key('invnum', 'cust_pkg', 'invnum')
+ || $self->ut_foreign_key('invnum', 'cust_bill', 'invnum')
+ || $self->ut_enum('format', [ '', 'C' ] )
|| $self->ut_text('detail')
|| $self->SUPER::check
;