=item quantity
+=item custnum - foreign key to cust_main table, optional
+
=back
=head1 METHODS
|| $self->ut_foreign_keyn('ratecenternum', 'rate_center', 'ratecenternum')
|| $self->ut_textn('state')
|| $self->ut_number('quantity')
+ || $self->ut_foreign_keyn('custnum', 'cust_main', 'custnum')
;
return $error if $error;
=head1 SEE ALSO
-L<FS::Record>, schema.html from the base documentation.
+L<FS::did_order>, <FS::Record>, schema.html from the base documentation.
=cut