OneNote Sync Troubleshooting
Version conflict messages typically appear if you and another user attempt to edit the same part of a page, such as changing the same paragraph of notes, at the same time. When this happens, OneNote creates multiple copies of the page to avoid data loss and an error message appears on the yellow Information bar. You will see an icon on a page that has the conflict.
To fix merge conflicts, do the following:
Click the yellow Information bar at the top of your page to view a page that lists the conflicting changes (highlighted in red).
Copy information from the page with the merge conflicts error and paste the changes into the main page, if necessary.
When you finish incorporating any changes, delete the conflicts page by right-clicking its page tab and then clicking Delete on the shortcut menu.