When you install the OneDrive app for Mac, a copy of your OneDrive is downloaded to your Mac and put in the OneDrive folder. This folder is kept in sync with OneDrive. If you add, change, or delete a file or folder on the OneDrive website, the file or folder is added, changed, or deleted in your OneDrive folder and vice versa.
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How to Fix OneDrive Sync Problems on Mac? In order to sync OneDrive, you need an Internet connection. So make sure that your Mac is able to connect to the Internet properly. Check out the file size, it should be less than 10GB. If not, then compress or resize the file and then try to sync again.
Following are the steps to Fix OneDrive Sync Problems on Mac:. Restart connection to the OneDrive service: To restart 'OneDrive' for Mac, click 'OneDrive' icon located in the menu bar and click 'Quit OneDrive' and then use spotlight to search for 'OneDrive' and open it. Update the OneDrive Desktop Client for Mac: To update OneDrive desktop client for Mac, open 'Mac App Store' and select the 'Update' button located in the toolbar.
If an update is available for the OneDrive app, it will appear there. Make sure the OneDrive process is running: To make sure the OneDrive is running, press 'Command and Spacebar' keys and enter 'Activity Monitor' to open 'Activity Monitor' Select the 'CPU' tab and look under the 'Process Column' for OneDrive. Make sure you have permissions to the file or folder you tried to add. Make sure there isn't already a file or folder with the same name in the same location. Make sure the file path isn't too long.
Uninstall and reinstall the OneDrive app.