About distribution groups
You use distribution groups to organize your fleet. Each distribution group includes those devices that you assign to the group.
You can assign content to a specific distribution group, thus ensuring that all devices in that group receive the same content updates. For example, you might assign all pilots in a specific region to the same distribution group. If these pilots are in the same group, they receive the same content when Jeppesen Distribution Manager Pro (JDM Pro) makes updates available.