A Microsoft file hosting and synchronization service.
Dear Adam,
Good day! Thank you for posting to Microsoft Community. We are happy to help you.
Generally, there is some character limitations in File Names or Folder names in OneDrive, SharePoint Online, Windows, and Mac, here are the following characters which are restricted:
But as you mentioned the same files are syncing without any problem on the other devices, I would like to confirm whether the problematic files which are not able to sync contains any characters mentioned in the above screenshot?
In addition, can you please share a screenshot of the OneDrive sync app About page? Click on the OneDrive icon in the Apple Menu bar> Settings & More> Preferences> About tab
Apart from the above-requested information, please help us to share the below which will help validate the situation on your side to find if it's caused by the limitation or an issue:
- Screenshot for the sync folder showing sync error with file name & folder name.
- If you change the name of the file, do you encounter the same sync error?
Note: Please mask the Device ID in the About screenshot page.
We look forward to your response. Thanks for your cooperation.
Sincerely,
Mia | Microsoft Community Moderator
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