PreviewMicrosoft Purview · OneDrive · Exchange Online
Microsoft Purview: Data Lifecycle Management – Ensure regulatory compliance by deleting inactive OneDrives and mailboxes for departing employees
Microsoft Purview Data Lifecycle Management will enable automated deletion of OneDrives and mailboxes for departed employees at scale. This feature is currently in development/preview and will help reduce manual compliance overhead when handling user departures.
Microsoft's description
Enables admins to delete both content and containers for departed users at scale thereby keeping your tenant compliant without any manual effort.