Table of Contents
Summary
- Users can upload and review non-Microsoft 365 content in Microsoft Purview eDiscovery (Premium).
- The feature allows side-by-side analysis of external and Microsoft 365 data.
- It is available by default with no configuration needed.
- Organizations may need to update eDiscovery workflows and provide additional training for teams.
- Change categorized as a new feature with admin impact.
Admin Impact: Medium
User Impact: Low
Release Start: 01 Dec 2025
Release End: 15 Dec 2025
Services: Purview
Category: Stay informed
Tags: New Feature, Admin Action
History
10/20/2025 Item Added to Message Center
Microsoft Message
Introduction
We’re introducing a new capability in Microsoft Purview eDiscovery (Premium) that allows users to upload and review non-Microsoft 365 content within review sets. This enhancement supports a more comprehensive investigation experience by enabling side-by-side analysis of external and Microsoft 365 data in the modern eDiscovery interface.
This message is associated with Microsoft 365 Roadmap ID 497638.
When this will happen
General Availability (Worldwide, GCC, GCC High, DoD): We will begin rolling out early December 2025 and expect to complete by mid-December 2025.
How this affects your organization
Who is affected: Admins and compliance teams using Microsoft Purview eDiscovery (Premium) in GCC, GCC High, and DoD environments.
What will happen:
- A new option will be available to upload non-Microsoft 365 data into review sets.
- The feature is available by default, and no configuration is needed.
- Uploaded data will be viewable and searchable alongside Microsoft 365 content.
- This change may affect how your organization manages eDiscovery workflows, requiring updates to internal processes and additional training for the eDiscovery team to ensure awareness and proper adoption of this feature.
What you can do to prepare
- Review internal eDiscovery workflows and documentation.
- Communicate the change to your eDiscovery and compliance teams.
- Consider training for investigators on handling external data within review sets.
- Learn more: Learn about eDiscovery solutions | Microsoft Learn
Compliance considerations
No compliance considerations identified, review as appropriate for your organization.