check before: 2026-01-01
Product:
Exchange, Outlook, Purview, Purview Communication Compliance, Purview Data Loss Prevention, Purview Information Protection, Windows
Platform:
Online, US Instances, Windows Desktop, World tenant
Status:
Launched
Change type:
New feature, User impact, Admin impact
Links:
Details:
Summary:
New Outlook for Windows will offer a customizable oversharing dialog for DLP, allowing admins to tailor messages with multi-language support, business justifications, and dynamic tokens. Rolling out globally from January 2026, the feature is off by default and configurable via the Compliance portal.
Details:
[Introduction]
New Outlook for Windows will now support the ability to show a customizable oversharing dialog for Data Loss Prevention (DLP). This enhancement allows organizations to tailor the experience for end users when oversharing is detected, improving clarity and compliance.
This message is associated with Microsoft 365 Roadmap ID 498921.
[When this will happen]
General Availability (Worldwide): Rollout begins in early January 2026 and is expected to complete by late January 2026.
General Availability (GCC): Rollout begins in early February 2026 and is expected to complete by late February 2026.
Change Category:
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Scope:
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Release Phase:
General Availability
Created:
2025-12-23
updated:
2025-12-23
Task Type
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Docu to Check
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MS How does it affect me
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MS Preperations
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MS Urgency
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MS workload name
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linked item details
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summary for non-techies**
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Direct effects for Operations**
User Experience Impact from DLP Oversharing Dialog
If the customizable oversharing dialog is enabled without proper preparation, users may receive confusing or unclear messages when attempting to share sensitive information, leading to frustration and potential non-compliance with data sharing policies.
- roles: End Users, Compliance Officers
- references: https://learn.microsoft.com/purview/dlp-ol365-win32-policy-tips, https://www.microsoft.com/microsoft-365/roadmap?filters=&searchterms=498921
Admin Configuration Challenges
Admins may face challenges in managing DLP settings effectively if the new feature is rolled out without adequate training or preparation, potentially leading to misconfigurations and inconsistent user experiences.
- roles: IT Administrators, Compliance Managers
- references: https://learn.microsoft.com/purview/dlp-ol365-win32-policy-tips, https://www.microsoft.com/microsoft-365/roadmap?filters=&searchterms=498921
Configutation Options**
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Data Protection**
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explanation for non-techies**
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** AI generated content. This information must be reviewed before use.
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Last updated 3 weeks ago ago
