Teams External File Sharing in Chat

Allow file sharing in chat with external users.

Need PowerShell Teams Module

Set-CsTeamsFilesPolicy -Identity Global -FileSharingInChatswithExternalUsers Enabled

Check with:

Get-CsTeamsFilesPolicy -Identity Global

Related: External Access to SharePoint - No MS Account, PowerShell Tips and Scripts

Followup

• The module is MicrosoftTeams (Install-Module MicrosoftTeams, then Connect-MicrosoftTeams with a Teams admin account) before the CsTeamsFilesPolicy cmdlets will load.
• If a tenant runs Huntress ISPM, check it isn’t going to revert this.