There are several file types and keywords which are restricted
on SharePoint online. Even if you are migrating content from any external
source using SharePoint Migration Tool available for SharePoint Online or through
any 3rd party migration tool on OneDrive or SharePoint Online
document library,
I am sharing the list of all those Invalid characters, file names, types which are restricted on SharePoint Online and OneDrive for business.
Restrictions
Details
Invalid characters
If a file or folder contains any of the characters listed
below, it may prevent files and folders from syncing. Rename the file or
folder to remove these characters before you upload it: “*: < > ? / \ |
Invalid file or folder names
These names aren’t allowed for files or folders: . lock,
CON, PRN, AUX, NUL, COM1 – COM9, LPT1 – LPT9, vti, desktop.ini, any
filename starting with ~$.
Invalid or Restricted file types
Microsoft recently removed the restriction on file types and
now the invalid ore restricted file types can be uploaded to SharePoint
Online document library Sync client using OneDrive sync client or any migration
tool.
These file types will not work until unless custom
scripting is enabled on the site collection.
.aspx, .asmx, .ascx, .master, .xap, .swf, .jar, .xsf, .htc
Network or mapped drives
You can’t add a network or mapped drive as your OneDrive
sync location. OneDrive doesn’t support symbolic links where the Link and Target
are both located in the same library location.
Elevated privileges
OneDrive can’t be run with elevated privileges.
Shared with Me
You can’t synchronize the Shared with Me view grouping of
files from a OneDrive for Business site.
Adnan is two time SharePoint MVP (Most Valuable Professional) with over 12 years of extensive experience with major expertise on SharePoint Server, Office 365, .Net Platform and Microsoft BI. He is currently working SharePoint Architect at FMT Consultants.
He is MCT Regional Lead for Pakistan Chapter since 2012. He is working on SharePoint for past nine years and worked on different intranet/intranet solutions for private & govt. sector majorly in Gulf region, which include OOB and customized solutions.
He is a trainer, technology evangelist and also speaks in community forums.