check before: 2025-10-06
Product:
Entra, Microsoft 365 Apps, Outlook, Purview Communication Compliance
Platform:
Android, mobile, Online, World tenant
Status:
Change type:
User impact, Retirement
Links:
Details:
Summary:
The Outlook Lite app will retire starting October 6, 2025, blocking new installs and requiring users to switch to the Outlook Mobile app, which offers enhanced features, security, and Microsoft 365 integration. No manual data migration is needed, and admins have control via Entra ID.
Details:
[Introduction]
The Outlook Lite app will be retired starting October 6th, 2025. After this date, new installations will be blocked. Existing users can continue using the app for a limited time before full retirement. The Outlook Lite app is being retired so we can focus our investments on the Outlook Mobile app, our flagship Android experience, which provides better functionality and user experience. We recommend transitioning to the Outlook Mobile app, where ongoing development and support will continue.
[When this will happen]
Retirement begins: October 6th, 2025
Full retirement: Expected within a few months after retirement
Change Category:
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Scope:
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Release Phase:
Created:
2025-09-06
updated:
2025-09-06
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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summary for non-techies**
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Direct effects for Operations**
Loss of Access to Outlook Lite App
Users currently relying on the Outlook Lite app will lose access to the app after retirement, impacting their email communication.
- roles: End Users, IT Support
- references: https://support.microsoft.com/office/outlook-for-ios-and-android-faq-65a01e26-e3c2-4067-bd05-0db6220e5c34
Transition to Outlook Mobile App
Users will need to transition to the Outlook Mobile app, which may lead to confusion and temporary disruption in email access during the switch.
- roles: End Users, IT Support
- references: https://support.microsoft.com/office/outlook-for-ios-and-android-quick-start-91a3fc25-3ba2-48cc-8257-805fd6892749
Data Access Concerns
Users may be concerned about data access and continuity during the transition, despite no manual migration being required.
- roles: End Users, Compliance Officers
- references: https://support.microsoft.com/office/outlook-for-ios-and-android-faq-65a01e26-e3c2-4067-bd05-0db6220e5c34
Compliance and Security Features
The retirement of Outlook Lite may lead to a temporary lack of compliance features that are not supported in the Lite app, affecting data protection.
- roles: Compliance Officers, IT Security
- references: https://support.microsoft.com/office/outlook-for-ios-and-android-faq-65a01e26-e3c2-4067-bd05-0db6220e5c34
User Training and Documentation Needs
There will be a need for updated training and documentation to assist users in transitioning to the Outlook Mobile app, which may not be readily available.
- roles: End Users, Training Coordinators
- references: https://support.microsoft.com/office/outlook-for-ios-and-android-quick-start-91a3fc25-3ba2-48cc-8257-805fd6892749
Configutation Options**
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Potentional Risks**
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IT Security**
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explanation for non-techies**
The Outlook Lite app, a simplified version of Microsoft's email application, will be phased out starting October 6, 2025. This means that after this date, no new installations of the app will be possible, and existing users will eventually need to transition to the Outlook Mobile app. This shift is similar to when a favorite local coffee shop closes, and you have to start visiting a new café that offers a broader menu and better services.
The Outlook Mobile app is being positioned as the main option for users, much like how a new café might offer a wider variety of drinks and snacks, along with a more comfortable seating area. It provides enhanced features, improved security, and seamless integration with Microsoft 365 services, making it a more robust choice for handling emails, calendars, and files.
For those currently using Outlook Lite, the transition to Outlook Mobile is designed to be smooth. Think of it like moving to a new house where all your furniture and belongings are already set up for you. There's no need for manual data migration; once you log into the Outlook Mobile app, all your emails, attachments, and calendar entries will be right there waiting for you.
Admins have the ability to manage access to the Outlook Mobile app through Entra ID, which is akin to having a security system in place that ensures only authorized people can enter a building. Users themselves can easily install or uninstall the app from the Google Play Store, much like choosing to download a new book or movie to enjoy.
Overall, the retirement of Outlook Lite and the shift to Outlook Mobile is a move towards a more feature-rich and secure email experience, similar to upgrading from a basic phone to a smartphone with all the latest apps and capabilities.
** AI generated content. This information must be reviewed before use.
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