Forum Discussion
Retention Policies and SharePoint sites
The reason why you put Office 365 Groups on retention is to ensure that the content in all the resources owned by the group is kept for a certain period.
When a group passes 30 days post-deletion, the Azure Active Directory object that represents the group is removed. This effectively breaks the link that ties all the group resources together. At the same time, instructions go to the associated workloads (like SharePoint and Exchange) to say that the group no longer exists. The workloads then check whether any retention holds exist. If they do, the content is held until the hold elapses. If not, the content is removed using the workload's normal processing (for instance, the mailbox is cleaned up by the Exchange Mailbox Folder Assistant).
Content under retention can always be accessed by a content search and export.
Now in even more confused! What is the pupose of allowing me to add Office 365 groups to a retention policy, if it is deleted after 30 days anyway?
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