For whatever reason, it’s not possible to update the Default MRM policy to add the DeletedItems retention tag to process items in the Deleted Items folder. All attempts to add the tag fail and Exchange Online doesn’t signal any errors. Is this part of Microsoft’s cunning plan to prompt tenants to use Microsoft 365 retention?
Microsoft 365 retention policies allow organizations to keep or remove content from workloads like Exchange Online and SharePoint Online. You can apply filters in retention policies, but Microsoft only supports this capability auto-label retention policies. You can go ahead and update a standard retention policy to add a content filter with PowerShell and the policy will work. The question is, how long will it work for before Microsoft changes something on the backend to stop the policy working?
The ability to lookup a user, site, or group and report the Microsoft 365 retention policies applicable to the location is now available in preview. The new feature helps administrators understand what retention policies might block the deletion of a mailbox, site, or group, something that’s often difficult when multiple retention policies exist in a tenant. Although welcome, it would be nice if Microsoft could extend the feature to add some actions. Maybe that will come in the next version.
Microsoft has moved retention processing for SharePoint Online, OneDrive for Business, Teams, and Yammer from the Managed Folder Assistant to a new retention assistant. (background processing job). It’s part of an effort to use workload-agnostic processing whenever possible to perform retention actions across Microsoft 365.
Microsoft 365 retention policies control how the system removes items automatically from Exchange Online, SharePoint Online, Teams, and other locations. Because these policies are so powerful, it’s a good idea to keep an eye on who makes changes to their settings. The audit log is a natural place to go looking for information about policy updates and while we can find information there, some of the data is oddly formatted or obscured for some reason. Persistence and PowerShell delivers answers, but this is a task way harder than it should be.