Hi,
you mean you will receive materials purchased as consignment material? Then I believe there is nothing special you have to do in EWM.
You order the material in the PO with the item category "consignment". Through that the "owner" of the stock in EWM will be the vendor, not the BP assigned to the plant.
When you change the owner (you take it out of consignment stock into your own stock) you need the delivery from ERP to EWM for a stock change.
Brgds
Juergen