Fix OneDrive for Business sync problems

If you can't sync files between your computer and OneDrive for Business, it might be due to problems with the OneDrive for Business sync client. Try the steps in this article to fix the problem.

This article covers sync using the longtime OneDrive for Business sync client, not the new new OneDrive sync client. Which OneDrive sync client am I using?

Follow these steps to fix your OneDrive for Business sync problems

Step 1: Make sure that the OneDrive for Business sync app is up-to-date

OneDrive for Business is frequently updated. Make sure you have the most recent updates.

Tip: If you sync only OneDrive for Business accounts associated with Office 365, you might be able to use the new OneDrive sync client. To find out more, see Get started with the OneDrive for Business Next Generation Sync Client in Windows. If you're using a Mac, see Get started with the OneDrive for Business Next Generation Sync Client on Mac OS X.

If you don’t have the OneDrive for Business sync app, you can download it free.

Step 2: Make sure that your file and folder names don't contain unsupported characters or invalid file types

If a file or folder name contains certain characters or file types, you won’t be able to sync those files. Review the list of invalid characters and file types, and change any file or folder names, or remove the file types that aren’t supported.

Step 3: Make sure that your file sizes, items counts, and file path lengths are within the limits

If a file you’re trying to sync is too large, or if you’re trying to sync too many items, OneDrive for Business sync might not work. Review the limits for the size and number of files that can be synced, and make sure the files you’re trying to sync don’t fall within the listed restrictions or limitations.

Step 4: Repair a OneDrive for Business sync connection

Follow these quick steps to repair a sync connection with OneDrive for Business, and see if that fixes your sync problem.

Step 5: Stop the sync and restart

If you’re having problems with a synced library folder, it’s sometimes simplest to just stop syncing the library, and then start syncing the library again, as if for the first time.

Step 6: Use the OneDrive for Business Sync Issues Troubleshooting Guide

If you’re still experiencing sync problems, try the OneDrive for Business Sync Issues Troubleshooting Guide. This tool can help guide you through diagnosing and resolving issues with libraries you’re currently syncing.

Still having sync issues?

If you're still having sync issues, try posting a question in the Office 365 community forums. They’re a great resource, and they're monitored by Microsoft support agents who can help if you’ve tried the steps here and are still stuck. You can also contact Office 365 for business support.

Notes: 

Still need help?

Get help from the Office 365 community forums Admins: Sign in and create a service request Admins: Call Support
Share Facebook Facebook Twitter Twitter Email Email

Was this information helpful?

Great! Any other feedback?

How can we improve it?

Thank you for your feedback!

×