diff --git a/AddOn/Calender_Office365_User/calendar.php b/AddOn/Calender_Office365_User/calendar.php
index c6898841..28991dfe 100644
--- a/AddOn/Calender_Office365_User/calendar.php
+++ b/AddOn/Calender_Office365_User/calendar.php
@@ -32,8 +32,45 @@ if (time() > ($data['time_saved'] + $data['expires_in'] - 60)) {
     file_put_contents($config['token_storage'], json_encode($tokens, JSON_PRETTY_PRINT));
 }
 
+if (isset($_GET['update'])) {
+    $eventId = $_GET['eventId'] ?? null;
+    if (!$eventId) {
+        die("Bitte eventId angeben.");
+    }
 
-// ➤ Beispiel: Termin anlegen
+    $updateData = [
+        "subject" => "Geändertes Meeting via PHP",
+        "start" => [
+            "dateTime" => "2025-07-25T15:00:00",
+            "timeZone" => "Europe/Berlin"
+        ],
+        "end" => [
+            "dateTime" => "2025-07-25T16:00:00",
+            "timeZone" => "Europe/Berlin"
+        ]
+    ];
+
+    $result = $calendar->updateEvent($eventId, $updateData);
+    header('Content-Type: application/json');
+    echo json_encode($result, JSON_PRETTY_PRINT);
+  
+}
+
+// Termin löschen
+if (isset($_GET['deleteEvent'])) {
+    $eventId = $_GET['eventId'] ?? null;
+    if (!$eventId) {
+        die("Bitte eventId angeben.");
+    }
+
+    $result = $calendar->deleteEvent($eventId);
+    header('Content-Type: application/json');
+    echo json_encode($result, JSON_PRETTY_PRINT);
+ 
+}
+
+
+// Termin erstellen
 if(isset($_GET['create'])){
     $event = [
         "subject" => "Test-Meeting via PHP",
@@ -53,11 +90,7 @@ if(isset($_GET['create'])){
 
     $response = $calendar->createEvent($event);
 
-    echo "<pre>";
-    print_r($response);
-    echo "</pre>";
-
-    echo "<hr/>";
+    echo json_encode($response, JSON_PRETTY_PRINT);
 }
 
 $events = $calendar->getEvents(); // eigene Funktion in OutlookCalendar-Klasse