RMA item from customer sending to Subcontractor directly for service

Hi,

I have a customer return due to failure part (RMA), and normally, the RMA item will return back to our premise and we will send this defect item to our subcontractor to perform repair as a subcontract service.

However, there is a new business requirement in which the RMA item will need to ship directly to our subcontractor premise from our customer instead of sending to our premise.

May I know how do you perform such process in SAP MM?

We always start out with return sales order, but I have no clue how to execute the drop shipment part to the subcontractor from the customer in SAP.

Let me know if you have experience in this area?

Thanks,

Tuff