diff --git a/packages/control/chargepoint/chargepoint.py b/packages/control/chargepoint/chargepoint.py
index ac94d529e5..656e33960a 100644
--- a/packages/control/chargepoint/chargepoint.py
+++ b/packages/control/chargepoint/chargepoint.py
@@ -702,12 +702,18 @@ def update(self, ev_list: Dict[str, Ev]) -> None:
             # OCPP Start Transaction nach Anstecken
             if ((self.data.get.plug_state and self.data.set.plug_state_prev is False) or
                     (self.data.set.ocpp_transaction_id is None and self.data.get.charge_state)):
-                self.data.set.ocpp_transaction_id = data.data.optional_data.start_transaction(
-                    self.data.config.ocpp_chargebox_id,
-                    self.chargepoint_module.fault_state,
-                    self.num,
-                    self.data.set.rfid or self.data.get.rfid or self.data.get.vehicle_id,
-                    self.data.get.imported)
+                        
+                # only start OCPP transaction if chargebox ID is not none
+                if (self.data.config.ocpp_chargebox_id is not None):
+                    # only start OCPP transaction if rfid tag or vehicle ID is set
+                    if (self.data.set.rfid or self.data.get.rfid or self.data.get.vehicle_id):
+                        
+                        self.data.set.ocpp_transaction_id = data.data.optional_data.start_transaction(
+                            self.data.config.ocpp_chargebox_id,
+                            self.chargepoint_module.fault_state,
+                            self.num,
+                            self.data.set.rfid or self.data.get.rfid or self.data.get.vehicle_id,
+                            self.data.get.imported)
             if self.data.get.plug_state and self.data.set.plug_state_prev is False:
                 self.data.control_parameter.timestamp_chargemode_changed = create_timestamp()
             # SoC nach Anstecken aktualisieren
diff --git a/packages/control/ocpp.py b/packages/control/ocpp.py
index 71f46c0212..352357cffd 100644
--- a/packages/control/ocpp.py
+++ b/packages/control/ocpp.py
@@ -87,10 +87,12 @@ def transfer_values(self: OptionalProtocol,
                             chargebox_id: str,
                             fault_state: FaultState,
                             connector_id: int,
+                            transaction_id: int,
                             imported: int) -> None:
             try:
                 self._process_call(chargebox_id, fault_state, call.MeterValues(
                     connector_id=connector_id,
+                    transaction_id=transaction_id,
                     meter_value=[{"timestamp": self._get_formatted_time(),
                                   "sampledValue": [
                         {
diff --git a/packages/control/optional.py b/packages/control/optional.py
index b65b161751..d679633224 100644
--- a/packages/control/optional.py
+++ b/packages/control/optional.py
@@ -284,6 +284,6 @@ def _transfer_meter_values(self):
                 if cp.data.set.ocpp_transaction_id is not None:
                     self.send_heart_beat(cp.data.config.ocpp_chargebox_id, cp.chargepoint_module.fault_state)
                     self.transfer_values(cp.data.config.ocpp_chargebox_id,
-                                         cp.chargepoint_module.fault_state, cp.num, int(cp.data.get.imported))
+                                         cp.chargepoint_module.fault_state, cp.num, cp.data.set.ocpp_transaction_id, int(cp.data.get.imported))
             except Exception:
                 log.exception("Fehler im OCPP-Optional-Modul")