How to use OneNote online. Microsoft 365

Capture thoughts, ideas and to-dos all in one place. Sign in with a Microsoft accountSign in with a work or school account. Not sure if you have an account?

In OneNote, tap Sign in. On the Sign in page, type the email address or phone number that you'd like to use to sign in ...

Tap on the circle icon with your account image in the upper left (also called Me Control) and select Add Account to sign in with multiple accounts.

Collaborate for free with online versions of Microsoft Word, PowerPoint, Excel, and OneNote ... Sign in Get Microsoft 365 · Sign up for the free version of ...

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OneNote. 意見反應. 登入. Microsoft 標誌. 登入. 沒有帳戶? 建立帳戶! ©2025 Microsoft 隱私權聲明.

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EDIT: For anyone else who has this issue, clearing the app cache (potentially after signing in again in another Office app) fixed the issue.