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I already changed the sales order and I don't want make it 2 sales orders , 2 notes or 2 invoices

some time customers ask about something more in this case I can make 2 invoice cause he/she add items for same order

But suppose I did mistake and forget some item and I want to edit it ? it's change only in order but after cant change in delivery or invoices

our work will be weak if customers feel there is 2 invoice for one order

set the names same names-supplier or name-client

about compensation will be easy if you separate the names and understand how much for you and how much for other partner

thanks joe for your help , but first we have many items and we can search about it by id or its codes but suppose I forget the code if we have too mach items and we want to search about it by its name , I can not ..
I try to type the description or name but I can found it so I remove the search item list to show all item and search about it directly

I think my manager try to do this step in the online Demo and it's work , Can search by name or code

Finally, if this issue mean there is problem in our system itself how can we fixed it ?

Hope you get my questions  ..

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