We use Master Orders frequently to place large orders with our vendors and then send releases once a month based on an Access job which calculates our upcoming needs from MRP.  However, the balance on a Master Order doesn't show up anywhere - we have custom script on a button in Inv Maintenance so we can see the master order balance there, but the only other way to see it is in a custom report, or our Access database.

How are others dealing with this?  How do you know when your order is running out and you need to place a new one?  Can this feature only be used with custom reports or is there something in the software that I don't know about which helps you keep track of these orders?