Teams showing users as "unknown users"

Issue Description: License Teams users display name showing as " Unknown User" in desktop application and on web

Issue:

Resolution:

First connect MS Online via Powershell:

Install-Module MSOnline

Connect-MsolService
​

We checked the below MSOL setting and it was disabled:

Get-MsolCompanyInformation -UsersPermissionToReadOtherUsersEnabled : False

And due to this the user were seeing other users as unknown user

So we ran the below command which resolved the issue:

Set-MsolCompanySettings -UsersPermissionToReadOtherUsersEnabled $true