Parag,
In order to make the scenario clear, I had structured my reply.
But still somethings remain slightly unclear.
Please answer below questions:
1. Who are the customers? shops or van man / sales employee?
2. If shops are the (fixed) customers, then why you want to create van man as customer?
as you said van man is the sales man (or an employee of the company)
3. In business, how does business know,
a. what items to put in an order?
b. who should be the customer?
4. When does business know these details?
5. Apart from SAP, currently some "paper work" must be there, for the van man and the customers, e.g. paper bill, delivery note etc. Explain this in detail
6. For each order is one delivery created?
For each delivery is one bill created?
typewriter