+$cgi->param('refnum') =~ /^(\d*)$/
+ or die 'illegal refnum '. $cgi->param('refnum');
+my $refnum = $1;
+$cgi->param('locationnum') =~ /^(\-?\d*)$/
+ or die 'illegal locationnum '. $cgi->param('locationnum');
+my $locationnum = $1;
+
+my $cust_pkg = new FS::cust_pkg {
+ 'custnum' => $custnum,
+ 'pkgpart' => $pkgpart,
+ 'start_date' => ( scalar($cgi->param('start_date'))
+ ? parse_datetime($cgi->param('start_date'))
+ : ''
+ ),
+ 'refnum' => $refnum,
+ 'locationnum' => $locationnum,
+};
+
+my %opt = ( 'cust_pkg' => $cust_pkg );