A family of Microsoft products that enable users to capture, organize, and reuse notes electronically.
Thank you for confirming, and I’m sorry for the frustration this has caused.
Since Outlook and OneDrive work normally, this does not appear to be a problem with your Microsoft account or subscription. This error is currently being reported by several OneNote users.
For now, please use OneNote for the web as a temporary workaround.
Do not uninstall OneNote or clear its app data if you have any unsynced notes, as this could remove locally stored changes.
Install any new OneNote update when it becomes available.
You can also report the problem through OneNote > Settings > Send Feedback, including error 9hehw, your device version, OneNote version, and a screenshot of the complete error.
This appears to require a fix from the OneNote development team rather than additional account troubleshooting.