When the customer is trying to create a purchase order from the sales order, they are getting the address on the tax information as of warehouse address and on the header as on legal entity delivery address. Customer wants the address on the header too as warehouse address. The same works fine if the PO is created directly as warehouse address both on header and as well as on Tax information.

When business has customers with multiple warehouses at different locations in the single entity and it is not feasible to update the same on the order level every time.