05-08-2020 12:22 AM
09-19-2020 01:26 AM - edited 09-19-2020 01:52 AM
@hgrooten I have exactly the same. Some users have no option to upload files (in a chat-window) and with my account there is no problem. I'm now searching in the policies for Microsoft Teams. But nothing found yet. When normal users would like to upload files, they also see the 'Onedrive for Business' warning.
I am an administrator so that is maybe why I have the rights. In my Office365 account I can not find an option for selecting Onedrive for Business or something similar.