MC999442 - Microsoft Purview | Data Lifecycle Management: Retention based on “last accessed” for OneDrive and SharePoint files

Updated September 23,August 18, 2026: We have updated the content.timeline. Thank you for your patience.

Enable adminsComing soon for Microsoft Purview | Data Lifecycle Management: Admins will be able to apply a retention policy or retention label in Microsoft OneDrive and Microsoft SharePoint for files that have not been accessed by anyone in theyour organization afterfor a specified period of time. In this release, users will be ableThis message applies to set up delete policies based on Last Accessed Date of Officeretention for Microsoft 365 file types. Non-officeWe will support other file types are not supported(non-Microsoft 365) in this release.a future rollout.

This message is associated with Microsoft 365 Roadmap ID 472030.

When this will happen:

Preview: We will begin rolling out late Novemberend of October 2026 (previously end of October)late June) and expect to complete by end of DecemberNovember 2026 (previously end of November)mid-August)

General Availability (Worldwide): We will begin rolling out early January 2027 (previously end of December 2026)2026 (previously late July) and expect to complete by early Februaryend of January 2027 (previously end of January)mid-August 2026)

How this will affect your organization:

This feature will help delete obsolete data, which will improve the quality and relevance of Microsoft 365 Copilot responses.

This feature will be available by default.

After the rollout, admins can use the retention control When items were last accessed when configuring labels and policies.

Retention settings page in Purview with the new “last accessed” option for retention policies:

What you need to do to prepare:

This rollout will happen automatically by the specified date with no admin action required before the rollout. Review your current configuration to determine the impact for your organization. You may want to notify your users about this change and update any relevant documentation.

Before rollout, we will update this post with new documentation.