Intercompany scenario: Company A> IC purchase order is created for an item, qty 5. Company B> An IC sales order is created, you set deliver now 3 and post packing slip, then cancel the deliver reminder of 2 (underdelivery is 100%). Company A > Back to the purchase order, you set Receive now = 4 and the post Product Receipt, underdelivery is 100% and overdelivery is 0%. System allows to post 4 although only 3 has been delivered. The system should prevent the user for posting 4 and only allow 3. In Customer scenario, the receive is done through mobile device and they use WHS.