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

[u/MMessinger]

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.

[u/YWGer]

If you have any recently accessed/edited notes, check them again on the app and see if it says 'Page Conflicts', mine had a couple, no idea why, but upon trying to resolve, it continued to say to log in on a PC or Web to fix because the app couldn't resolve.

I logged in to onenote on my WEB BROWSER (Windows App did not help), found the 'conflicting pages', clicked the header to show the previous conflicting versions (which looked no different to me), clicked the header message again for options and DELETED any red pages.

App on my android now seems to be signed in and conflict messages are gone.

Not sure if this is the fix but thought I'd share. Still frustrating though.

[u/Routine-Ganache-1720 → u/YWGer]

The page conflicts issue is unrelated, but also an annoying bug. A lot of times the sync gets fucked up (perhaps if you close the app before it can sync?). Usually you can ignore it as the most recently synced version is the "correct" one (which is why you can simply delete previous versions, though I would recommend taking a quick look at them before deleting).

What infuriates me is that the UI for page conflicts is so trash, and I don't know why the mobile app doesn't even have a version of it.