$main::auth->assert('vendor_invoice_edit');
 
+  if (!$::instance_conf->get_allow_new_purchase_invoice) {
+    $::form->show_generic_error($::locale->text("You do not have the permissions to access this function."));
+  }
+
   return $main::lxdebug->leave_sub() if (load_draft_maybe());
 
   $form->{title} = $locale->text('Record Vendor Invoice');
   ), @custom_hiddens,
   map { $_.'_rate', $_.'_description', $_.'_taxnumber' } split / /, $form->{taxaccounts}];
 
-  $::request->{layout}->use_javascript(map { "${_}.js" } qw(kivi.SalesPurchase));
+  $::request->{layout}->use_javascript(map { "${_}.js" } qw(kivi.SalesPurchase ckeditor/ckeditor ckeditor/adapters/jquery));
 
   $form->header();
 
 
   $form->error($locale->text('Cannot post transaction above the maximum future booking date!'))
     if ($form->date_max_future($invdate, \%myconfig));
-  $form->error($locale->text('Cannot post invoice for a closed period!')) if $max_datepaid && $form->date_closed($max_datepaid, \%myconfig);
+  $form->error($locale->text('Cannot post invoice for a closed period!'))
+    if ($invdate <= $closedto);
 
   $form->isblank("exchangerate", $locale->text('Exchangerate missing!'))
     if ($form->{currency} ne $form->{defaultcurrency});