for now , sales invoice which is going in mutliple vehicle we need to make different invoices with desired values or items. Other way is need to make seperate delivery note and make a single invoice … this makes a long process , because some people need in simple or dont use delivery notes , is there any alternate way available…??
I think you are asking for delivery trip doctype which you want to connect with sales invoice doctype and you are not using delivery note as well.
Delivery note is source document to plan delivery trips. Sales invoice cannot be pulled into delivery trip docytpe. You have to create delivery notes and plan them into delivery trip for transportation purposes. Many delivery notes can be booked in one delivery trip or vice versa.