How is automatic iOS app updating supposed to work, from end to end? The manual doesn't really spell out the behavior you are supposed to see.
In my environment, we have JSS 9.82 and iOS 9.3.1. Apps are device assigned via VPP, auto updates and the 2 Managed app settings are set on.
The behavior I was expecting is immediate updates for managed apps with versions below what JSS had. Say an app update comes out. JSS picks up the change at our sync window, then iPads update immediately next time they check-in.
They DO update immediately if I use the Force Update option for that app in JSS, but that defies the point. The point was to buy apps with VPP, push them out to devices, then we don't have to babysit app updates.
Perhaps the automatic update thing doesn't work for apps that weren't installed originally as managed? Or maybe you have to force update the first time? Or auto-updates only work after the first version JSS knew about?