Use this tab to study the gross demand for the part calculated by MRP. Gross demand is the demand when MRP considers only receipts and deliveries, not the quantity on hand. You can also study the shop order that generated the demand. The gross requirement navigator shows requirement hierarchy of the components that are needed when supplying a particular part (parts in the bottom of the product structure are needed when supplying (acquiring or manufacturing) the immediate top parts and so on). This means that when supplies or demands are replanned for a part it would raise or lower the demand for the lower level components. Clicking on the parts in the gross requirement navigator, the planner can study the gross requirement for the selected part. This navigator makes it possible to investigate the gross requirements of the parts in the entire supply demand structure. The part icons on the navigator will indicate whether the part is MRP planned, project MRP planned or planned. The system will mark certain MRP information as alarms if the planner turns them on using the right mouse button on the navigator items.