A family of Microsoft products that enable users to capture, organize, and reuse notes electronically.
Hi James,
Thank you for posting, I am here to help. Did you get any error message when you try to use the sync button? If you're having trouble seeing recent changes when using OneNote on multiple devices, or if your notebook is showing a sync error.
Please check and try the following:
Verify that your computer or device has good internet connectivity. A reliable connection ensures that notes can sync quickly and successfully across devices.
OneNote Manual Sync:
Select the File menu and on the Info tab, select View sync status Sync Status.
In the Shared Notebook Synchronization dialog box that appears, do one of the following:
Select Sync All to sync all of your shared notebooks.
Select Sync Now next to a specific notebook to sync only that notebook.
For more details check this article:
Fix issues when you can't sync OneNote
I hope you find this information helpful. Please let us know if you have any further questions If the answer is helpful, please click "Accept Answer".
Best regards,
Jansher