Flagging Inventory in Sales Orders

Is there a way in Sage 100 to advise when an item is not available?  EX:  If I am putting in an order for 12 tennis nets and those nets have already been committed to other orders?  I know you can pull up each item individually to see what’s on hand and what is on sales orders, but not every sales person knows to do that.  Can it not flag you and say that there is not enough available?