Invalid file names and file types
Information about the restrictions and limitations that apply to file names and file types when syncing with Microsoft OneDrive for home, OneDrive for work or school or SharePoint in Microsoft 365. Microsoft Invalid File Names
Limits
Storage limit of 5TB. Full details of limits can be seen in the following Microsoft Article SharePoint Online limits. Please note that OneDrive for Business is based off of SharePoint Online.
There is a limit to the total number of files and folders you can have within your OneDrive for Business account of 30 million. While that is a large amount there are impacts to search, viewing and OneDrive syncing to be aware of, please see the article referenced above for details
Restrictions and limitations when you sync files and folders
There are some restrictions and limitations when using the OneDrive Sync Client. These can be seen in the following Microsoft Article Restrictions and limitations when you sync files and folders. Please note that OneDrive for Business is based off of SharePoint Online.
Shared Library naming
A shared library is based upon a Team. When a Team is created a Shared Library is created for all Team members. If a Team or Channel name changes, the name of the corresponding Shared Library in OneDrive for Business will NOT change. This is a known limitation of the service. If Microsoft changes this, we will update you here.