Supplier startegy

 We have following business senario at the moment relating to supplier record.

Our procurement department were using a supplier record for creating the purchase orders. After making PO for a certain period of time, supplier required to change it's exisiting name from 'A' to 'B'. Following are the point of concerns from the deparment:

1- They want to keep physical copies of old purchase orders reconciled with the record exist in the system

2- They dont want the supplier name change on old purchase orders if go for new supplier

3- They still want to have reporting intact in case of new vendor