For example, consider a group that has Office 365 E3/E5 assigned with a Skype for Business service plan enabled. Also imagine that a few members of the group have Audio Conferencing licenses assigned directly. When the group is deleted, group-based licensing will try to remove Office 365 E3/E5 from all users. Because Audio Conferencing is dependent on Skype for Business, for any users with Audio Conferencing assigned, group-based licensing converts the Office 365 E3/E5 licenses to direct license assignment.