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(Updated) Microsoft Purview | Data Loss Prevention: New guided diagnostics experience for DLP

Ends: 30 Nov 2026
Roadmap: 561032
Platforms: Web

Rollout dates are often only in the text. When Microsoft moves them, the change shows under "What changed".

What the notice says

Microsoft's text, with its sections, lists and tables; source markup removed

Updated August 4, 2026: We have updated the timeline. Thank you for your patience.

Introduction

Microsoft is introducing a new guided diagnostics experience in Microsoft Purview Data Loss Prevention (DLP) to help administrators diagnose and resolve DLP policy issues more efficiently. This experience provides clearer visibility into how DLP policies are evaluated, which conditions are matched, and what actions are taken. For eligible tenants, Security Copilot‑powered insights offer recommendations to support troubleshooting and policy optimization.

This message is associated with Microsoft 365 Roadmap ID 561032.

When this will happen

Public Preview: Early September 2026
General Availability (Worldwide): We expect to begin rolling out October 2026.

How this affects your organization

Who is affected

Microsoft 365 administrators who manage Microsoft Purview DLP policies
Commercial tenants
Security Copilot‑powered insights are available only to customers with eligible Microsoft 365 E5 and Copilot licensing

What will happen

A new guided diagnostics experience will be available in the Microsoft Purview portal to help troubleshoot DLP policy behavior.
The diagnostics will be available to all users who have permission to view DLP policies.
Admins will see a new guided diagnostics experience in the Microsoft Purview portal for troubleshooting DLP issues.
Diagnostics provide visibility into:
Eligible tenants will receive Copilot‑powered insights and recommendations to assist with:
Existing DLP policies and enforcement behavior are not changed.
There is no impact to user workflows.

DLP policy evaluation order
Conditions that were matched
Actions taken (allow, block, audit)

Identifying potential policy misconfigurations
Troubleshooting DLP behavior
Policy optimization

What you can do to prepare

No action is required.

Optionally:

Review internal DLP troubleshooting documentation and update it to reference the new diagnostics experience.
Ensure security and compliance teams are aware of the new diagnostics flow in the Microsoft Purview portal.
Review Copilot licensing to understand availability of Security Copilot‑powered insights.

(Documentation links will be provided once public preview documentation is available.)

Compliance considerations

Question	Answer
Does the change introduce or significantly modify AI/ML or agent capabilities that interact with or provide access to customer data?	Yes. The guided diagnostics experience includes Security Copilot-powered insights and recommendations for eligible tenants. These insights analyze existing DLP configuration data and diagnostic metadata to help administrators understand policy behavior, troubleshoot issues, and identify opportunities for policy optimization. No new customer content sources are introduced, and Copilot does not change DLP enforcement decisions.
Does the change alter how admins can monitor, report on, or demonstrate compliance activities (for example, in Microsoft Purview reporting or diagnostics)?	Yes. The new guided diagnostics experience enhances how administrators can monitor and understand DLP policy evaluation, including visibility into evaluation order, matched conditions, and resulting actions. This improves troubleshooting and compliance validation workflows without changing audit logs or enforcement behavior.

Question

Answer

Does the change introduce or significantly modify AI/ML or agent capabilities that interact with or provide access to customer data?

Yes. The guided diagnostics experience includes Security Copilot-powered insights and recommendations for eligible tenants. These insights analyze existing DLP configuration data and diagnostic metadata to help administrators understand policy behavior, troubleshoot issues, and identify opportunities for policy optimization. No new customer content sources are introduced, and Copilot does not change DLP enforcement decisions.

Does the change alter how admins can monitor, report on, or demonstrate compliance activities (for example, in Microsoft Purview reporting or diagnostics)?

Yes. The new guided diagnostics experience enhances how administrators can monitor and understand DLP policy evaluation, including visibility into evaluation order, matched conditions, and resulting actions. This improves troubleshooting and compliance validation workflows without changing audit logs or enforcement behavior.

What changed

Between the versions this installation saw, newest first

This installation has seen one version of this notice, first on 19 Oct 2026. Later changes will show here.

Linked documentation

Microsoft pages the notice links to

The notice links to no Microsoft Learn or Support page that this installation reads.

Not confirmed here

What this page cannot tell you

Whether your tenant is affected: this is Microsoft's notice, not a check of your settings.
Versions before 19 Oct 2026: this installation first saw the notice after Microsoft posted it.