The Exchange Connector for SCSM is a very powerful tool but if you have ever assigned an Active Directory group as a reviewer in a Review Activity you will find that the Exchange Connector does not handle the replies from the individual group members. Whenever a group member replies to one of these Review Activity notifications with [Approved] or [Rejected], the Exchange Connector will not approve or reject the Review Activity for the group, in fact it will not affect the Review Activity at all since the Exchange Connector does not know which reviewer is responding.
This is because the user object is not related to the Review Activity but instead the AD group is.
One solution to this problem is using Orchestrator automation. I have created a runbook that will rearrange these group reviewers so that the Exchange Connector can process the replies by the group members.
To get more detail, visit my blog: https://www.winhoven.com/post/split-group-reviewers-into-individuals-in-scsm/ to see the inner workings of my runbook.