Inventory items with cost centre segment

Hello

I have requested to create an inventory item, so I can track units using on hand.

But my inventory item is in fact a expense item.

My problem is as follow: I need to create a Requisition and later on a PO with cost center in the accounting DFF.

If I choose destination Expense, I have no problem with the accounting. The accounting DFF travell to the invoice. That's perfect.

But If I choose Destination Inventory--> then there is no possible to assign the cost center when creating the Requisition / PO.

And I need to use the cost center even when there is an inventory item.