>> QuickBooks Online time-out function is designed for the security of your data especially when you're away from your computer for several minutes or hours. When you set your timeout duration to a specific setting (1, 2, or 3 hours), you'll remain signed in that long before being logged out for inactivity.

Thank you for your reply, but that is absolutely NOT TRUE. My day started at 9am. By 11am, I had been logged out at least 3-4 times. I don't remember now - it's such a frequent occurrence that it's hard to keep track. 

Clearly, by the number of replies and kudos on this thread, this is a serious issue that should be addressed by QuickBooks. You're great at figuring out how to charge us for features we don't want or need, but sadly, seem to be incapable of fixing the ones that are critical to operations.