What’s Changing?
Microsoft is retiring OneView and TrueTime features from Outlook on the web between March and late June 2026.
- Users will no longer be able to connect personal email accounts (Outlook.com, Gmail, etc.) into Outlook on the web.
- TrueTime combined calendar view (work + personal) in Outlook on the Web (OWA) will be removed.
- Any existing connected personal accounts will be automatically disconnected.
What’s Not Changing?
- No data is being deleted from personal accounts, the integration in Outlook on the web is being removed.
- M365 Glow mail and calendar are not affected.
Using Multiple Accounts
You can sign in to different accounts using multiple browsers or browser profiles as a workaround.
- You can use Outlook on the web signed in on multiple browsers or profiles.
- If you need to work with multiple accounts, you can use Outlook for Windows or Mac, which still support adding more than one account.
