+my $error;
+if ( $cgi->param('delay') ) {
+ my $date = parse_datetime($cgi->param('start_date'));
+ if (!$date) {
+ $error = "Invalid change date '".$cgi->param('start_date')."'.";
+ } elsif ( $date < time ) {
+ $error = "Change date ".$cgi->param('start_date')." is in the past.";
+ } else {
+ # schedule the change
+ $change{'start_date'} = $date;
+ $error = $cust_pkg->change_later(\%change);
+ }
+} else {
+ # special case: if there's a package change scheduled, and it matches
+ # the parameters the user requested this time, then change to the existing
+ # future package.
+ if ( $cust_pkg->change_to_pkgnum ) {
+ my $change_to = FS::cust_pkg->by_key($cust_pkg->change_to_pkgnum);
+ if ( $change_to->pkgpart == $change{'pkgpart'} and
+ $change_to->locationnum == $change{'locationnum'} ) {
+
+ %change = ( 'cust_pkg' => $change_to );