MC804770 – Installing web add-ins to replace COM add-ins in new Outlook for Windows

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check before: 2024-07-01

Product:

Microsoft 365 Apps, Microsoft 365 for the web, Outlook, Windows

Platform:

Web, World tenant

Status:

Change type:

New feature, User impact, Admin impact

Links:

Details:

Summary:
Microsoft is transitioning to the new Outlook for Windows, replacing COM add-ins with web add-ins. Users can switch to the new Outlook and install equivalent web add-ins during the onboarding process. The rollout begins in late July 2024, with general availability in early August 2024.

Details:
Microsoft is updating the default Microsoft Windows email and calendar applications, transitioning from Mail, Calendar, and People to the new Microsoft Outlook for Windows.

If your accounts are supported in the new Outlook for Windows, you'll see a toggle in the upper right corner of your application named Try the New Outlook. Selecting this toggle will download the new app and let you switch to new Outlook for Windows.


This message is associated with Microsoft 365 Roadmap ID 399464
[When this will happen:]
Public Preview: We will begin rolling out in late July 2024 and expect to complete roll out by early August 2024.
General Availability: We will begin rolling out in early August 2024 and expect to complete by early September 2024.

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Release Phase:

Created:
2024-06-25

updated:
2024-08-10

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MS How does it affect me

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Direct effects for Operations**

- Impact on IT Operations
- Transition from COM add-ins to web add-ins may require significant changes in the IT infrastructure.
- Role Impacted: IT Operations Team
- Dependencies: Existing COM add-ins may need to be decommissioned, requiring updates to documentation and support processes.
- Reference: [Migrate from COM to web add-ins](https://learn.microsoft.com/deployoffice/outlook/get-started/migrate-com-to-web-addins)

- Impact on IT Services
- Potential service disruptions during the migration process could affect email and calendar functionalities.
- Role Impacted: IT Service Management Team
- Dependencies: Integration with other Microsoft 365 services (e.g., Teams, SharePoint) may be impacted if users rely on COM add-ins for workflows.
- Reference: [Office Add-ins platform overview](https://learn.microsoft.com/office/dev/add-ins/overview/office-add-ins)

- Impact on IT Users
- Users may experience confusion or productivity loss if they are not adequately informed about the transition and the availability of equivalent web add-ins.
- Role Impacted: End Users (Employees)
- Dependencies: User training and support resources must be updated to reflect the new add-in landscape.
- Reference: [Install web add-in counterparts of existing COM add-ins](https://learn.microsoft.com/office/dev/add-ins/develop/make-office-add-in-compatible-with-existing-com-add-ingroup-policy)

Opportunities**

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** AI generated content. This information is not reliable.

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