diff --git a/Symcon_Publish_to_Shelly_MQTT/module.php b/Symcon_Publish_to_Shelly_MQTT/module.php
index d677264..8b2f7ba 100644
--- a/Symcon_Publish_to_Shelly_MQTT/module.php
+++ b/Symcon_Publish_to_Shelly_MQTT/module.php
@@ -46,7 +46,7 @@ class Symcon_Publish_to_Shelly_MQTT extends IPSModule
     {
         IPS_LogMessage("ShellySwitchSender", "GetAction gestartet");
 
-        $mqttInstanceID = $this->ReadPropertyInteger("mqtt_instance_id"); // Instanz-ID deiner MQTT-Instanz
+        $mqttInstanceID = $this->ReadPropertyInteger("mqtt_instance_id"); 
         $topic = $this->ReadPropertyString("Topic");
         
         $msg_id = $this->ReadPropertyInteger("msg_id");
@@ -80,8 +80,13 @@ class Symcon_Publish_to_Shelly_MQTT extends IPSModule
             return;
         }
 
-        // Nachricht senden
-        $result = MQTT_Publish($mqttInstanceID, $topic, $jsonPayload, 0);
+        // MQTT-Nachricht senden via RequestAction
+        $result = IPS_RequestAction($mqttInstanceID, "Publish", [
+            "Topic" => $topic,
+            "Payload" => $jsonPayload,
+            "QoS" => 0,
+            "Retain" => false
+        ]);
 
         if ($result) {
             IPS_LogMessage("ShellySwitchSender", "Nachricht erfolgreich gesendet");
@@ -90,4 +95,5 @@ class Symcon_Publish_to_Shelly_MQTT extends IPSModule
         }
     }
 
+
 }