MC1216266 - Microsoft Purview | eDiscovery Content Search case changes

Introduction

We’re making changes to modern eDiscovery Content Search case. Starting February 16, 2026, Content Search cases will no longer support review sets or case-level data sources. These capabilities will remain available in dedicated non-Content Search eDiscovery cases.

When this will happen:

This change will begin rolling out on February 16, 2026.

How this affects your organization:

Who is affected: Organizations using eDiscovery Content Search case in Microsoft Purview.

What will happen:

• Users may notice that review sets and case-level data source options are no longer available in the Content Search case when this change is implemented.
• Users who require review, filtering, tagging, analytics, or other advanced review capabilities may no longer be able to perform these actions in Content Search case after this change.
• Existing searches and direct exports in Content Search cases will not be affected.

What you can do to prepare:

• No action is required if you use Content Search cases only for search and direct export.
• We recommend users move review activities to dedicated eDiscovery cases for investigations that are not Content Search cases.
• If your workflow requires review sets or case-level data sources:
  • Create a separate eDiscovery case for investigations.
  • Add data sources and review sets in that case to continue your end-to-end eDiscovery workflow.
• Learn more: Learn about eDiscovery solutions | Microsoft Learn

Compliance considerations:

No compliance considerations identified, review as appropriate for your organization.