Is there any way to trigger a process model when a change occurs to a user or group. When we say change, it may be like change and existing user or add new user, add new group, delete an existing group, add user to group, add group to group, etc.
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Can you please elaborate a little bit more about the context? Is it for general purpose, like Christine has suggested, or is it more related to security (e.g. get notification when an administrator/developer changes group membership and this shouldn't gone by undetected?