I have issues with this code, I can't make JSON splitting part correctly. I constantly get the following error: TypeError: Cannot read property "cu_id" from undefined.

part of JSON data looks like this (it is too big to show all, but the rest is the same)

{"started":"2022-01-15T12:56:08.197","finished":"2022-01-15T12:56:08.207","action":"RECEIVE","status":"SUCCESS","username":"sciarlo","subject":"340382659301954864","object":"10834376","result":"Created lots 5265995","trace_id":"LC3tS16A","properties":{"arrival_id":"ARR-98fc5b2b-cad2-4033-9bff-3af5cd779946","cu_id":"10834376","cu_quantity":"62","freshness_date_format":"NONE","load_carrier_barcode":"340389301954864","location":"3403826554864","purchase_orders":"366469","receive_type":"SSCC","temperature_zone":"AMBIENT","tu_id":"10834376","tu_quantity":"62"}}

Here is the part of code with issues:

  var receiveActions = []
  var latestTimestamp = receiveTab.getRange(2, 19).getValue();
  var actionTime = new Date(outputArray[0].finished)
  receiveTab.getRange(3, 19).setValue(actionTime);

  for (var i in outputArray) {
    var receiveAction = outputArray[i];
    if (new Date(receiveAction.finished) > new Date(latestTimestamp)) {
      
      var article = receiveAction.properties.cu_id;
      var location = receiveAction.properties.location;
      var temperatureZone = receiveAction.properties.temperature_zone;
      var cuQuantity = receiveAction.properties.cu_quantity;
      var tuQuantity = receiveAction.properties.tu_quantity;
      var tuSize = cuQuantity/tuQuantity;
      var timestamp = new Date(receiveAction.finished);
      var user = receiveAction.username;
      
      receiveActions.push([timestamp,user,temperatureZone,article,location,tuQuantity,tuSize])
    }
  }

Thank you in advance for help!