A family of Microsoft products that enable users to capture, organize, and reuse notes electronically.
Hello Cheryl Dotson
I can see that you are having issue with your iPhone won't sync OneNote because your no longer have permission.
Before trying another reset or reinstall, please check whether you have any recent notes on the iPhone that have not synchronized, as removing the account or app could cause those changes to be lost.
Could you please confirm the following?
- Does the notebook open normally in OneNote for the web when you sign in with the same account?
- Is this your own notebook, or was it shared with you by another person?
- Does the error affect only this notebook or every notebook on the iPhone?
- Are your latest notes safely visible online or on another device?
If the notebook also shows a permission error online, the notebook owner will need to restore your access.
If you own the notebook, please check its sharing permissions in OneDrive under Share > Manage Access. If it opens normally online, the issue is more likely limited to the OneNote app on the iPhone.
Please let me know the results so I can narrow down the next step to better assist you.