MC1472023 - (Updated) [Outlook Mobile] Purview Data Loss Prevention support for Calendar Events
Microsoft 365 Message Center announcement MC1472023.
MS Message Center's Summary
Outlook mobile apps on iOS and Android are gaining Microsoft Purview data loss prevention support for calendar events starting in late September 2026. Existing data protection policies will automatically extend to meeting details and invite content to prevent sensitive data leaks. Administrators should review current compliance rules to ensure alignment before the rollout completes.
- Administrator impact
- No direct administrator action is required.
- End user impact
- Users will see policy tips and enforcement on mobile calendar events containing sensitive information.
- Importance
- 4/10: This update introduces new compliance capabilities for mobile calendars without requiring immediate configuration changes.
Microsoft Summary
Outlook for iOS and Android will support Microsoft Purview Data Loss Prevention for calendar events starting mid-November 2026, helping prevent sensitive data sharing in meeting details. No admin action is needed; existing DLP policies will automatically apply, enhancing compliance across email and calendar.
- Message Center ID
- MC1472023
- Category
- stay Informed
- Severity
- normal
- Services
- Exchange Online, Microsoft Purview
- Tags
- Updated message, New feature, Admin impact
- Published
- 2026-09-14
- Last updated
- 2026-10-06
- Expires
- 2026-12-28
Updated October 6, 2026: We have updated the timeline. Thank you for your patience. [What and why:] Outlook for iOS and Android will support Microsoft Purview Data Loss Prevention \(DLP\) policies for calendar events. Organizations can detect and help prevent the sharing of sensitive information in meeting subjects, descriptions, and invite content through policy tips, user remediation, and policy enforcement. This provides consistent compliance protection across email and calendar experiences on mobile devices. [Rollout schedule:] General Availability (Worldwide, GCC, GCC High, DoD): We will begin rolling out mid-November 2026 (previously late September) and expect to complete by mid-November 2026 (previously late September). [Impact on your organization:] This feature helps organizations extend Microsoft Purview Data Loss Prevention protections to calendar events created from Outlook for iOS and Android. Users receive policy guidance before sending meeting invitations that contain sensitive information, helping reduce accidental data exposure and improve compliance. Organizations benefit from more consistent protection across email and calendar workflows while supporting regulatory and corporate data protection requirements. [Action required / Recommendations:] No administrator action is required to prepare for this feature. Existing Microsoft Purview Data Loss Prevention policies will automatically apply to supported calendar events in Outlook for iOS and Android. Organizations with DLP policies already configured can benefit from expanded protection of calendar content without additional policy creation or client configuration. Administrators may choose to review existing DLP policies to ensure they align with their organization's compliance requirements.