How does Cost Group assignments differ between Oracle Inventory and Oracle Warehouse Managment?

Cost Groups in Oracle Warehouse Management are assigned by the Cost Group Rules Engine. 

In Oracle Inventory, Cost Groups are derived based on the Primary Cost Method of the organization and the location where the material is being moved.

 If the costing method is Standard-Costing, then the Cost Group associated with subinventory is assigned to the material.

 For the other costing methods, the Cost Group associated with the organization is used.

 In Oracle Warehouse Management, once a Cost Group is associated with a material, it does no change when the material is moved within the organization. In Oracle Inventory, the Cost Group associated with the material changes with the location where it is residing.