public function sendNotifications()
 {
     require_once 'Services/Payment/classes/class.ilPaymentNotification.php';
     $msn = new ilPaymentNotification();
     $msn->send();
     return true;
 }
 public function run()
 {
     require_once 'Services/Payment/classes/class.ilPaymentNotification.php';
     $msn = new ilPaymentNotification();
     $msn->send();
     include_once './Services/Payment/classes/class.ilUserDefinedInvoiceNumber.php';
     if (ilUserDefinedInvoiceNumber::_isUDInvoiceNumberActive()) {
         $msn = new ilUserDefinedInvoiceNumber();
         $msn->cronCheck();
     }
     $result = new ilCronJobResult();
     $result->setStatus(ilCronJobResult::STATUS_OK);
     return $result;
 }