please help me answer this question. (must be 75+words)

Consider the flowchart on p. 336 of the Magal and Word text (Figure 9-23). Explain how deeply you think sales personnel have to understand production processes; production personnel have to understand procurement processes; and procurement personnel have to understand sales processes.

Create TO Confirm TO Warehouse management process Shipping (Delivery) COM FICO Shipping (Goods issue) Billing Payment Yes Stalt Customer PO Sales order processing Sufficient finished goods? Fulfillment process No Inventory management process San Diego: IM, Fulfillment, WM STO Goods receipt Create Create Confirm TR TO TO Warehouse management process Inventory management process Yes Sufficient finished goods? Goods issue Request production Authorize production Sufficient raw materials ? FL COM FI COM Goods issue Goods receipt (components)_confirmation (Finished goods) Production process Dallas: Production, Procurement, IM No FI Create requisition Create & send purchase order Receive shipment Receive Send invoice payment Procurement process Figure 9-23: Procurement, fulfillment, production, and warehouse management processes