Subinventory Transfers between Organisations

HI,

I want to transfer items from an Inventory Organisation (Operating Unit A) to another Inventory Organisation (Operating Unit .

Can I do a transfer between subinventories in this case or I need to do an Inventory Organisation Tranfer?

The Items in Inventory Organization associatd with Operating Units A are defined as Inventory Items but not as Inventory Asset Items (we don't maintain a cost for the Item). Are Promotional Items for which we want to track stock.

Thanks,

Veronica