Would anyone be able to confirm what the restrictions are for SharePoint Online as it seems to be ever changing. Is there a page anywhere which I can refer to as I have seen mixed reports.

File Upload Size once was 10gb but now appears to be 15gb?

Invalid file names and file types in OneDrive, OneDrive for Business, and SharePoint

This still seems valid " * : < > ? / \ | But you can create a folder with ~ at the start in the UI I can create all of the folders listed under Invalid file or folder names

Any pointers in the right direction would be much appreciated. Is there a page I can take as the definitive resource for this?

Also, you can create a folder via CSOM with a . at the start ie .Folder. But in the UI you can't.


1 Answer 1


Per my test in my SharePoint online, I also can create the folder start with “.” By CSOM but I cannot create the folder start with “.” By UI.

I suggest you could open a support ticket in the Admin Center like the picture below. enter image description here

More references:

How To Create New Service Request On Office 365 Support For Business Support.

http://www.c-sharpcorner.com/article/how-to-create-new-service-request-on- office-365-support-for-business-support/

Contact support for business products - Admin Help.


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