Android OneNote app in offline mode, Sign In yields "Something went wrong. [9hehw]" message

Mark Messinger 145 Reputation points
2026-08-27T14:19:41.1233333+00:00

Android OneNote application version 16.0.20326.20108

Microsoft Family 365 subscription

Samsung S24 Ultra, Android 16. The phone is connecting fine with the internet. I've got a good data connection and am on wifi.

As often happens, when I run the Android OneNote application, it displays a message that it's in offline mode and I'm invited to Sign In. Normally, I tap the link to Sign In, and apparently that happens because I'm not normally displayed a sign-in screen; the application just begins syncing, as normal.

Today, however, the Sign In link takes me to a Microsoft sign in page. The screen immediately displays and error. "Something went wrong. [9hehw]". The screen doesn't display any fields to enter login ID or password. The message advises me to contact my administrator (I'm an ordinary person, no a corporation).

On my phone, I dropped the cache and data, uninstalled the OneNote application, then reinstalled it. My notebooks can be found, so no problem there. However, the message remains: "Working offline." No sign in is possible, because of the Something went wrong error message.

Has anyone else encountered this error and, if so, how did you resolve it?

Here are more details for the sign in error message I'm currently seeing:

Message: Access denied for the resource

Tag: 9hehw

The correlation ID has changed, between when I took the screenshot above, when compared to after the application was reinstalled on my phone (and I've now rebooted my phone). Here's the latest Correlation ID: 1cf8a499-6363-dc45-aa5c-6e7547c2def3

DPTI: 39c4d5a9a26ddea7

Update: I am able to sync OneNote on Windows 11, with no error. Also, my other Office apps, on the Android phone, appear to be functioning and syncing correctly. So far, this looks to be only a problem with OneNote.

Update: I've now uninstalled the current version of the Android app, and tested again with two earlier versions. The earliest was a version released in July. The result is the same, no matter which versions I install.Screenshot_20260827_061611_OneNote

Microsoft 365 and Office | OneNote | Other | Android

Answer recommended by moderator
jeffhubb 400 Reputation points Microsoft Employee
2026-09-02T21:25:11.2466667+00:00

Hello everyone, I want to apologize for the silence here. We have been hearing the reports and have been performing investigations behind the scenes. We have identified the root cause and are actively rolling out a fix to our backend. Please do not uninstall or reset OneNote. You will simply need to restart the app. The rollout will take some time, so it may take a day before everyone sees the fix.

This does not affect core Notebook sync, but rather supplementary features such as the Recent Pages list. You can still edit and sync your OneNote sections and pages, but the recent list will be outdated until the fix reaches saturation.

I apologize for how long it has taken us to resolve the issue.

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  1. Augusto Moraes 5 Reputation points
    2026-09-03T13:03:46.7633333+00:00

    Update – September 3, 2026

    Microsoft has released a new version of OneNote for Android, and after updating I can confirm that the authentication/synchronization issue is now resolved.

    The previous 9hehw / 9hk4q errors and the invalid_scope failure are no longer occurring in my tests.

    https://learn.microsoft.com/en-us/answers/questions/5990621/onenote-android-authentication-failure-unresolved

    This is consistent with the earlier findings indicating an application/service-side authentication configuration issue rather than a device, Android WebView, password, cache, or Samsung-specific problem.

    Thank you for the follow-up and assistance.

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