IC report "Optimize Inventory"

A client uses the inquiry screen called Optimize Inventory under IC Items & Price Lists.  As more and more users at that company become familiar with that screen, they want to use it -- but they've found that only one person can be in at a time.  Is this something we should be buying separate licenses for?  Is it part of Sage Inventory Advisor or another Sage product?  The program ID is IC4900, and the error references IC0307, so it sounds like it should be part of Inventory Control.  Is anyone else out there using it, and have info about how to allow multiple users?


-Wendy Heumann