Zero cost item issue

Summary:

Zero Cost Items - In business process, there are scenarios which can bring an inventory balance for a particular sku in a particular warehouse to zero. Subsequently inventory in the warehouse for that sku can be found and a positive cycle count adjustment will occur.

1) Is it expected functionality that when an inventory balance moves to zero, the cost of the item is also set to zero in the system.? If then a cycle count positive adjustment occurs (warehouse found inventory), the cycle count will be valued at zero in Oracle. Each subsequent cycle count positive or negative adjustment will have a zero value until there is a new PO receipt which creates a cost for the sku in the system. The zero cost transactions will stay in the system until they are cleared out manually with a miscellaneous issue at zero cost. Concern