Export Sales Order - XML FORMAT

Hi,
We can in Dynamics Nav ( from 2016 ) , Export posted sales Invoices with the button - SEND TO and select electronic document format.
But, in a sales order , there is not this function.
I would like to send the order to my client, who could be able to import it in his system.

Or , I don't understand the electronic document flow.
I was thinking :
1 : I create a Sales order or Sales quote
2 : I send to my customer in XML format
3 : My customer import it, and his internal ERP an workflow valide the Sale order or Sales quote as a Purchase Order or Purchase Quote.
4 : The customer send me back an XML file, which is the confirmation of quantité , item , price , etc...
5 : I import it in Nav,
6 : Nav modify the Sales Order
7 : I send the Confirmation Order with electronic document.
8 : I deliver the item
9 : I send the Posted Sales Invoice in XML File format.

But no way to find out this logic in Nav.
Is it possible to have this logic in Nav ?
or how does the electronic document exchange are made for ?

thank you
NAV 2016 - 2017 - 2018