diff --git a/Abrechnung/module.php b/Abrechnung/module.php
index cc9f37c..5394be9 100644
--- a/Abrechnung/module.php
+++ b/Abrechnung/module.php
@@ -69,12 +69,14 @@ class Abrechnung extends IPSModule
         $this->RegisterVariableInteger('VisuTariffEnd', 'Tarif Enddatum', '~UnixTimestamp', 13);
         $this->RegisterVariableFloat('VisuTariffPrice', 'Tarif Rp/Einheit', 'BELEVO.TariffPrice', 14);
         $this->RegisterVariableString('VisuTariffStatus', 'Tarif Status', '', 15);
+        $this->RegisterVariableString('VisuTariffPayload', 'Tarif Payload', '', 16);
         $this->EnableAction('FromDate');
         $this->EnableAction('ToDate');
         $this->EnableAction('VisuTariffType');
         $this->EnableAction('VisuTariffStart');
         $this->EnableAction('VisuTariffEnd');
         $this->EnableAction('VisuTariffPrice');
+        $this->EnableAction('VisuTariffPayload');
 
         $this->RegisterScript(
             'StartBilling',
@@ -102,13 +104,15 @@ class Abrechnung extends IPSModule
         $this->RegisterVariableInteger('VisuTariffEnd', 'Tarif Enddatum', '~UnixTimestamp', 13);
         $this->RegisterVariableFloat('VisuTariffPrice', 'Tarif Rp/Einheit', 'BELEVO.TariffPrice', 14);
         $this->RegisterVariableString('VisuTariffStatus', 'Tarif Status', '', 15);
+        $this->RegisterVariableString('VisuTariffPayload', 'Tarif Payload', '', 16);
 
         $this->EnableAction('VisuTariffType');
         $this->EnableAction('VisuTariffStart');
         $this->EnableAction('VisuTariffEnd');
         $this->EnableAction('VisuTariffPrice');
+        $this->EnableAction('VisuTariffPayload');
 
-        foreach (['VisuTariffType', 'VisuTariffStart', 'VisuTariffEnd', 'VisuTariffPrice', 'VisuTariffStatus', 'SaveVisuTariff', 'DeleteVisuTariff'] as $ident) {
+        foreach (['VisuTariffType', 'VisuTariffStart', 'VisuTariffEnd', 'VisuTariffPrice', 'VisuTariffStatus', 'VisuTariffPayload', 'SaveVisuTariff', 'DeleteVisuTariff'] as $ident) {
             $this->HideObjectByIdent($ident);
         }
     }
@@ -344,6 +348,7 @@ class Abrechnung extends IPSModule
         }
 
         $instanceID = (int)$this->InstanceID;
+        $payloadID = (int)$this->GetIDForIdent('VisuTariffPayload');
         $status = $this->h(@GetValue($this->GetIDForIdent('VisuTariffStatus')));
 
         $html = "
@@ -410,14 +415,17 @@ root.querySelector('[data-action=save]').onclick=function(){
    rows.push({unit_type:type,start:start,end:end,price:price});
   }
  });
+ var payload=JSON.stringify(rows);
  status.textContent='Speichern...';
- fetch('/api/',{method:'POST',headers:{'Content-Type':'application/json'},body:JSON.stringify({jsonrpc:'2.0',method:'IPS_RequestAction',params:[" . $instanceID . ",'SaveTariffTable',JSON.stringify(rows)],id:Date.now()})})
-  .then(function(r){return r.json();})
-  .then(function(j){
-   if(j.error){throw new Error(j.error.message||'API-Fehler');}
-   status.textContent=(typeof j.result==='string'&&j.result)?j.result:'Gespeichert.';
-  })
-  .catch(function(e){status.textContent='Fehler: '+e.message;});
+ if(typeof requestAction==='function'){
+  requestAction(" . $payloadID . ",payload);
+  status.textContent='Speichern gesendet.';
+ }else if(window.parent&&typeof window.parent.requestAction==='function'){
+  window.parent.requestAction(" . $payloadID . ",payload);
+  status.textContent='Speichern gesendet.';
+ }else{
+  status.textContent='Fehler: requestAction nicht verfügbar.';
+ }
 };
 })();
 </script>
@@ -523,6 +531,19 @@ root.querySelector('[data-action=save]').onclick=function(){
                 SetValue($this->GetIDForIdent($Ident), $Value);
                 break;
 
+            case 'VisuTariffPayload':
+                SetValue($this->GetIDForIdent('VisuTariffPayload'), (string)$Value);
+                try {
+                    $message = $this->SaveTariffTableFromPayload($Value);
+                    SetValue($this->GetIDForIdent('VisuTariffStatus'), $message);
+                    echo $message;
+                } catch (Throwable $e) {
+                    $message = 'Fehler beim Speichern der Tarifliste: ' . $e->getMessage();
+                    SetValue($this->GetIDForIdent('VisuTariffStatus'), $message);
+                    echo $message;
+                }
+                break;
+
             case 'SaveVisuTariff':
                 try {
                     $message = $this->SaveVisuTariffFromVariables();