Most people are happy with 1800 seconds, which gives you 30 minutes of idle time. In tight license situations such as yours, people tend to make it smaller to be more aggressive in reclaiming licenses. I would think that in your case you would want to make it smaller. For example, if someone has 35 minutes of activity and then times out 30 minutes later, you have used 65 minutes = 2 usage CALs.
If you ramp the timeout down, make sure you enable "Allow Session Recovery" on the QMC System, Setup, Server, Documents tab. This will allow your users to pick up right where they left off when they reconnect after timeout.
What I'm not sure about with Usage CALs is the effect of setting your timeout too low. If a user has a 10 minute session and then times out and then has another 10 minute session within the same 60 minute window, does that consume 2 usage CALs? That's an important point I'm not clear on. Does anyone else know?
Other things you can do to maximize your license usage:
1. If using full browser version, teach users to use the "Close" button when they are finished with their session.
2. Use the IE Plugin which will terminate the session when the use closes the browser window.
Talk to your Qlik or Partner rep about converting those Usage CALs to something more suitable. It's fairly unusual in my experience to use Usage CALs every day. You may be "mis-licensed".
-Rob
http://masterssummit.com
http://qlikviewcookbook.com
