The Stock on hand of 600 units each is available in 4 locations D1,D2,D3,D4. The locations D1,D2,D3 have a customer "C1" and Supplying location "Plant1" attached to it in the Customer source and location source respectively. The network is not defined for the location D4. At the end of the planning horizon the Projected stock shows a value of 0 at all locations, although the 600 units at D4 is not getting consumed in any way.