diff --git a/module/CudiBundle/Component/Mail/Booking.php b/module/CudiBundle/Component/Mail/Booking.php
index dfd288abe8..4730e708e1 100644
--- a/module/CudiBundle/Component/Mail/Booking.php
+++ b/module/CudiBundle/Component/Mail/Booking.php
@@ -103,6 +103,100 @@ public static function sendAssignMail(EntityManager $entityManager, TransportInt
             $mailTransport->send($mail);
         }
     }
+    /**
+ * Send a mail when an assignment has been extended
+ *
+ * @param EntityManager      $entityManager
+ * @param TransportInterface $mailTransport
+ * @param array              $bookings
+ * @param Person             $person
+ */
+public static function sendAssignmentExtendedMail(EntityManager $entityManager, TransportInterface $mailTransport, $bookings, Person $person)
+{
+    $language = $person->getLanguage();
+    if ($language === null) {
+        $language = $entityManager->getRepository('CommonBundle\Entity\General\Language')
+            ->findOneByAbbrev('en');
+    }
+
+    // Retrieve mail configuration for assignment extension (you need to add this key in your config)
+    $mailData = unserialize(
+        $entityManager
+            ->getRepository('CommonBundle\Entity\General\Config')
+            ->getConfigValue('cudi.booking_assignment_extended_mail')
+    );
+
+    $message = $mailData[$language->getAbbrev()]['content'];
+    $subject = $mailData[$language->getAbbrev()]['subject'];
+
+    $mailAddress = $entityManager
+        ->getRepository('CommonBundle\Entity\General\Config')
+        ->getConfigValue('cudi.mail');
+
+    $mailName = $entityManager
+        ->getRepository('CommonBundle\Entity\General\Config')
+        ->getConfigValue('cudi.mail_name');
+
+    $openingHours = $entityManager
+        ->getRepository('CudiBundle\Entity\Sale\Session\OpeningHour')
+        ->findPeriodFromNow('P7D');
+
+    $openingHourText = '';
+    foreach ($openingHours as $openingHour) {
+        $openingHourText .= '- ' . $openingHour->getStart()->format('l') . ' (' . $openingHour->getStart()->format('d/m') . ') : ' .
+            $openingHour->getStart()->format('G:i') . ' - ' . $openingHour->getEnd()->format('G:i');
+        if (strlen($openingHour->getComment($language)) > 0) {
+            $openingHourText .= ' (' . $openingHour->getComment($language) . ')';
+        }
+        $openingHourText .= "\r\n";
+    }
+
+    if ($openingHourText == '') {
+        $message = str_replace('#no_opening_hours#', '', $message);
+    } else {
+        $message = preg_replace('/#no_opening_hours#.*#no_opening_hours#/', '', $message);
+    }
+
+    preg_match('/#expires#(.*)#expires#/', $message, $matches);
+    $message = preg_replace('/#expires#.*#expires#/', '', $message);
+
+    $list = '';
+    foreach ($bookings as $booking) {
+        $list .= '* ' . $booking->getArticle()->getMainArticle()->getTitle();
+        if ($booking->getExpirationDate()) {
+            $list .= ' (' . $matches[1] . ' ' . $booking->getExpirationDate()->format('d/m/Y') . ')';
+        }
+        $list .= "\r\n";
+    }
+
+    $mail = new Message();
+    $mail->setEncoding('UTF-8')
+        ->setBody(str_replace('{{ bookings }}', $list, str_replace('{{ openingHours }}', $openingHourText, $message)))
+        ->setFrom($mailAddress, $mailName)
+        ->addTo($person->getEmail(), $person->getFullName())
+        ->setSubject($subject);
+
+    if ($entityManager->getRepository('CommonBundle\Entity\General\Config')->getConfigValue('cudi.booking_mails_to_sysadmin')) {
+        $mail->addBcc(
+            $entityManager
+                ->getRepository('CommonBundle\Entity\General\Config')
+                ->getConfigValue('system_administrator_mail'),
+            'System Administrator'
+        );
+    }
+
+    $sendMailsToCudi = $entityManager
+        ->getRepository('CommonBundle\Entity\General\Config')
+        ->getConfigValue('cudi.booking_mails_to_cudi') == 1;
+    if ($sendMailsToCudi) {
+        $mail->addCc($mailAddress, $mailName);
+    }
+
+    if (getenv('APPLICATION_ENV') != 'development') {
+        $mailTransport->send($mail);
+    }
+}
+
 
     /**
      * Send a warning mail before expiring bookings
diff --git a/module/CudiBundle/Controller/Admin/Sale/BookingController.php b/module/CudiBundle/Controller/Admin/Sale/BookingController.php
index 68253a6d44..281ddd098e 100644
--- a/module/CudiBundle/Controller/Admin/Sale/BookingController.php
+++ b/module/CudiBundle/Controller/Admin/Sale/BookingController.php
@@ -428,11 +428,18 @@ public function extendAction()
             $date = clone $booking->getExpirationDate();
             $booking->setExpirationDate($date->add(new DateInterval($extendTime)));
             $this->getEntityManager()->flush();
+            // Send an email notification indicating the assignment was extended
+            BookingMail::sendAssignmentExtendedMail(
+                $this->getEntityManager(),
+                $this->getMailTransport(),
+                [$booking],
+                $booking->getPerson()
+            );
         }
 
         $this->flashMessenger()->success(
             'SUCCESS',
-            'The booking was successfully extended!'
+            'The booking was successfully extended and a notification email has been sent!'
         );
 
         $this->redirect()->toRoute(