Forum Discussion
O365 Groups and its related content (Plan, Files, etc.) when Group Owner leaves the organization?
Yes, apart from the fact that the conversations are held in Yammer rather than in the Exchange group mailbox. This is actually an important point, because it means that conversations are then "hidden" from the point of compliance searches. Content searches are able to look through group mailboxes and document libraries, but they do not support Yammer. This is one good reason why any company working in a regulated industry will have a problem with Yammer Groups, even if they use Office 365 Groups to manage their membership.
There are some other differences too, but storage of conversations is the big one.
I have... but it has not changed my view.
When the data governance framework extends to Yammer, the hole will be closed and all will be well. But it's not closed at present, so the issue remains.