Intercompany Scenario for global operations

Summary:

Hello Experts,

We are with below requirement using below entities :

Material request Flow :Customer ->Business Unit1 ->Business Unit2 ->Supplier

Customer sends PO to Business Unit1 . Business Unit1 creates sales order,

Business Unit1 doesn't have inventory in it warehouse, so it intends to send material request to Business Unit2

Business Unit2 is not having either , it sends PO to its supplier.

Shipment scenarios differ by item categories/items.

1) Drop shipment to customer : Supplier->Customer .

Is the below a viable option:

Transactions :Customer (PO) ->Business Unit1 (SO) ->back to back buy with global procurement operation between business units ->Business Unit2 ->Supplier