Working on the same notebooks across different devices most commonly causes this issue, as the syncing process might glitch out. Additional factors contributing to this issue might include corrupt cache and network issues. In a larger notebook or with a slow internet connection, syncing might take some time. Before continuing to troubleshooting steps, wait a little longer to see if the sync completes on its own.
1. OneDrive Service Status
OneNote uses the sync process to upload the changes made by the user in the notebook to Microsoft OneDrive. If the OneDrive servers are experiencing an outage, the syncing process might fail, leading to the error.
2. Sync Manually
A glitch or network disruption might interrupt the automatic syncing process. Performing a manual sync will reinitialize the sync process, establishing a fresh connection with the server, which could solve this issue.
3. Update OneNote Application
If the OneNote application is not updated to the latest version, it may cause syncing issues due to compatibility problems with OneDrive cloud storage’s updated API and sync protocols. Thus, updating the OneNote application to the latest version could solve this issue.
4. Re-Login Account
Due to network issues or glitches, the user session might time out, causing a failed syncing process. Signing out and back into your account will refresh the authentication tokens, reestablishing connection with the OneDrive cloud service. Note: Signing out of the OneNote application will also log you out of all other Microsoft Office applications. Ensure saving any ongoing work prior to signing out.
5. Move Section to New Notebook
If a particular notebook has run into synchronization issues due to a glitch, then transferring the sections of the old notebook to a newly created notebook could resolve the issue.
6. Clear Cache
Cache files are temporary data stored on your local device to enable quicker access to resources, such as multimedia files, without repeatedly retrieving them from the cloud. When you make changes in OneNote, they are first saved locally in the cache and then periodically synced to OneDrive. However, if the cache becomes corrupted, it can lead to syncing issues, preventing your changes from being properly updated across devices. Note: Clearing cache would result in the loss of all unsynced notebooks. Therefore, we recommend you to back up all notebooks before attempting this method.
