Step 1: Create parts for trip and on site charges

1. Distance Travelled for Trip: Add a part to capture the charges for the distance travelled during a trip
   
2. Billable Hours: Add a part to capture the charges for the time spent at the service location

Step 2: Create a custom function

1. For Distance Travelled for Trip
   (Distance travelled for all the trips in the service appointment) X (Unit Price of the part Distance Travelled for Trip)
2. For Billable Hours
   (Total duration of all the time sheets in the service appointment) X (Unit Price of the part Billable Hours)

1. Navigate to Setup > Automation > Functions and click Create Function.
   
2. Enter the following details and click Save:
   
1. Function Name: CalculateTripAndOnsiteCharges
   
2. Module: Service Appointments
   
3. In the Deluge Editor, enter the following script:
   
   

   try { erroravailable=false; errormessage=""; partRate = 0; travel_Amount = 0; final_Amount = 0; Amount = 0; Total_distance_travelled = 0; temp_hrs = 0; temp_min = 0; part_update_Map = Map(); part_update_Map1 = Map(); Time_Sheets_Resp = zoho.fsm.getRelatedRecords("Time_Sheets","Service_Appointments",service_appointment.get("id")); //info Time_Sheets_Resp; if(!Time_Sheets_Resp.isEmpty() && Time_Sheets_Resp != null) { Time_Sheets_List = Time_Sheets_Resp.get("data").toList(); serv_line_item_id = Time_Sheets_Resp.get("data").toMap().get("Timesheet_X_Services").toMap().get("Service_Line_Item").toMap().get("id"); for each Time_Sheets_data in Time_Sheets_List { time = Time_Sheets_data.toMap().get("Duration"); if(time!= "" && time != null) { if(time.toNumber() >= 60) { temptime=time.toNumber()/60; time=time.toNumber()-temptime.toNumber()*60; temp_hrs=temp_hrs+temptime.toNumber(); temp_min=temp_min+time; } else  { temp_min=temp_min+time.toNumber(); } } else  { erroravailable=true; errormessage="The time Sheet is yet be completed"; } } new_hrs = temp_min / 60; new_final_hrs = temp_hrs + new_hrs; new_final_hrs = new_final_hrs.round(2); //info new_final_hrs; app_resp = zoho.fsm.getRecordById("Service_Appointments",service_appointment.get("id")); app_list = app_resp.get("data").toMap().get("Appointments_X_Services").toList(); for each  app_data in app_list { if(app_data.toMap().get("Service_Line_Item").toMap().get("id") == serv_line_item_id) {   wo_id = app_data.toMap().get("Work_Order").toMap().get("id"); } } if(wo_id != null &&  wo_id != "") { wo_resp = zoho.fsm.getRecordById("Work_Orders",wo_id).toMap().get("data").toMap(); tax = wo_resp.get("Service_Line_Items").toMap().get("Tax"); taxRate = tax.get("Tax_Percentage"); } respTrips = zoho.fsm.getRelatedRecords("Trips","Service_Appointments",service_appointment.get("id")); resp_data_list = respTrips.get("data").toList(); //info resp_data_list; for each  resp_data in resp_data_list { appointment_name = resp_data.get("Appointment").toMap().get("name"); trip_name = resp_data.get("Name"); description = appointment_name + " " + trip_name; Distance_Travelled=resp_data.get("Distance_Travelled"); //info Distance_Travelled; if(!Distance_Travelled.isNull() && !Distance_Travelled.isEmpty()) { Total_distance_travelled = Total_distance_travelled+Distance_Travelled.get("value").toDecimal(); } } //info Total_distance_travelled; partsList = zoho.fsm.getRecords("Service_And_Parts").get("data").toList(); for each  parts_data in partsList { //info parts_data; if(parts_data.get("Name") == "Distance Travelled for Trip") {   if(Total_distance_travelled >0) { partRate = parts_data.get("Unit_Price"); part_update_Map1.put("Part",parts_data.get("id")); part_update_Map1.put("Description",parts_data.get("Description")); part_update_Map1.put("Service_Line_Item",serv_line_item_id); part_update_Map1.put("Unit",parts_data.get("Unit")); part_update_Map1.put("List_Price",parts_data.get("Unit_Price")); part_update_Map1.put("Tax",tax); part_update_Map1.put("Quantity",Total_distance_travelled); } } if(parts_data.get("Name") == "Billable Hours") {   part_update_Map.put("Part",parts_data.get("id"));   part_update_Map.put("Description",parts_data.get("Description"));   part_update_Map.put("Service_Line_Item",serv_line_item_id);   part_update_Map.put("Quantity",new_final_hrs);   part_update_Map.put("Unit",parts_data.get("Unit"));   part_update_Map.put("List_Price",parts_data.get("Unit_Price"));   part_update_Map.put("Tax",tax);  }  } Part_Line_Items_List = list(); Part_Line_Items_List.add(part_update_Map); Part_Line_Items_List.add(part_update_Map1); serv_update_Map = Map(); serv_update_Map.put("id",serv_line_item_id); serv_update_Map.put("Part_Line_Items",Part_Line_Items_List); updateMapList = list(); updateMapList.add(serv_update_Map); updateMap = Map(); updateMap.put("Service_Line_Items",updateMapList);   //info updateMap; } else  { erroravailable=true; errormessage="Time sheet is not created"; } if(erroravailable != true) { result = zoho.fsm.updateRecord("Work_Orders",wo_id,updateMap); info result;  } else { info errormessage; /* sendmail [ from: zoho.adminuserid to: zoho.adminuserid subject: "Work Order is not updated" message: errormessage ] */ } } catch(e) { info e; /* sendmail [ from: zoho.adminuserid to: zoho.adminuserid subject: "Error in the function" message: e ] */ }

Step 3: Create a workflow rule

1. Navigate to Setup > Automation > Workflow Rules and click Create Workflow.
   
2. Enter the following details, then click Next:
   
1. Module: Service Appointments
   
2. Rule Name: ChargeForTripsTakenAndTimeOnsite
   
3. Description: When creating an invoice from a work order, include charges for the trips (travel time or travel km) taken and the actual time on site.
   
   
   
   
3. Select the rule trigger as Edited and click Next.
   
   
   
   
4. Select the rule criteria as Status is Completed AND Billing Status is Not yet Invoiced. Click Next.
   
   
   
   
5. Click +Action and select Function.
   
   
   
   
6. Select Existing Functions and click Next.
   
   
   
   
7. Select the function created in the previous step.
   
   
   
   
8. Click Save.
   
   

Testing the use case

1. Create a work order.
   
2. Create a service appointment for the work order.
   
3. Start the service appointment.
   
4. Create a trip for the service appointment.
   
5. Complete Work for the service appointment.
   Ensure that the time sheets and trips have Start Time and End Time.