

Once the soft delete retention period expires, the mailbox and OneDrive account are permanently deleted. Set the OneDrive retention for deleted users – OneDrive | Microsoft Docs

Refer to the article below to set the retention period for deleted users. Deleted OneDrive for Business accounts are also retained for a specified number of days based on a setting in the SharePoint admin center. During this period of 30 days, the account can be restored if needed. The Azure AD Account and the soft-deleted mailbox are retained for a period of 30 days. When an administrator deletes a user account using an Exchange Online mailbox and OneDrive, the action releases any licenses assigned to the account and soft deletes the user mailbox and OneDrive for Business account. In this article, we discuss how to identify Exchange Online inactive mailboxes and deleted OneDrive for Business accounts and review the processes available to migrate this content. If you perform a tenant-to-tenant migration for a company that retains content for deleted users, the client might ask whether this content can move to a new tenant to maintain compliance.

