One Note Issues

Question

Why can I not get to One note any longer and sync with my personal account?

Answer 1

Hi,

If the error is 9HEHW, it is a known issue, I am afraid. Microsoft is working on the same.

https://yourwindowsguide.com/2026/09/onenote-9hehw-error-2026.html

There is currently no confirmed permanent fix in the supplied reports. Users have already tried clearing the cache and app data, restarting the phone, uninstalling and reinstalling OneNote, and even testing older versions of the app. In one report, several older versions produced the same OneNote 9hehw error, which makes simply rolling back the app version unlikely to be a reliable solution.

I appreciate your wait while Microsoft fixes it.

A friendly reminder that this is a user-to-user forum where users help other users.

Experts or Advisors participating here cannot make changes to Microsoft services or access internal systems and can only provide technical guidance, irrespective of Microsoft's Policy decisions.

I hope this information helps. If you have any more questions, don't hesitate to reach out. Wishing you good luck!

A Windows MVP writes content on the above website, so it is safe. However, do watch out for the ads. It should translate into your Browser language automatically.

Answer 2

Common causes are account authentication problems in OneNote:

• The password for the personal account was changed and OneNote still has old credentials.
• OneNote is signed in with a different account than the one that owns the notebook.
• Access to the notebook was removed.

For OneNote on Android with a personal account, try this path:

1. Update OneNote for Android to the latest version from the Play Store, then restart the app.
2. In Android, go to Settings > Accounts and confirm the personal account shown in OneNote is the correct one.
3. If OneNote asks to sign in, sign in with the same personal Microsoft account that is associated with the notebook.
4. If the notebook still will not sync, open https://www.onenote.com in a browser and sign in with that same account.
   • If the notebook opens there, the account still has access.
   • Then close the OneNote app, open https://www.onedrive.com, sign in with the same account, open the notebook from its folder, and choose Open In OneNote.
5. If Android shows Account Error - Action Required and the personal account is listed by phone number only, tap Add Email in the error message to connect a valid email address. That restores syncing for affected Android users.

If the notebook does not appear in OneNote for the web, the issue is usually that the wrong account is being used or the account no longer has permission to that notebook.

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• Fix issues when you can't sync OneNote
• "Account Error - Action Required" message in OneNote for Android