Email Private Teams channel members

mjaldred 

1. Email all 30 members (e.g., communicate any upcoming details via email)
   - Why use email when you're using Teams? You can email the private channel by selecting "Get email address" from the three dots ... (More options) and you can send info in the Posts section to Outlook by selecting "Share to Outlook" from the three dots ...
   
   
2. Create an Outlook meeting invite and add all 30 members to the meeting.
   - You cannot schedule a meeting in a private channel, only use "Meet now". But you can schedule a Teams meeting and send it to the channel email address.
   
   
3. Manage all 30 members within Teams.
   - If you're the private channel owner that is your responsibility.

By the way, consider using the new feature "shared channels" as well. Can be used both internally and externally and you have the possibility to schedule meetings there and much more.