Installation

You need the built-in PowerShell, version 5, because PowerShell Core, a.k.a. PowerShell 6, doesn’t work yet. If in doubt, check the version with:

$PSVersionTable.PSVersion

You need to install a bunch of stuff:

• Visual C++ 2017 x64 Redistributable
• Microsoft Online Services Sign-In Assistant for IT Professionals RTW
• Skype for Business Online Windows PowerShell Module

Then run PowerShell as admin, and enable running scripts. Also install the MSOnline module:

Set-ExecutionPolicy RemoteSigned
Install-Module MSOnline
Install-Module MicrosoftTeams

Exit from admin PowerShell.

Connecting

Skype for Business

This is the one you’ll use the most. Start regular (non-admin) PowerShell, then open your session:

Import-Module SkypeOnlineConnector
$sfboSession = New-CsOnlineSession
Import-PSSession $sfboSession

When finished, remove the session (this is important, otherwise you might run out of your session pool for a while):

Remove-PSSession $Session

For a complete list of commands, see Skype for Business PowerShell.

Microsoft Teams

Pretty straight-forward:

Connect-MicrosoftTeams

For the command reference, refer to Microsoft Teams PowerShell.