How to only allow admins to send messages on a group chat?

Dear Enrico Bobato Neiverth

Thank you for joining the Microsoft Community.

Based on your description, I know the scenario you have encountered. For this, in Microsoft Teams, there isn't a direct setting to restrict messaging permissions in group chats so that only admins can send messages. However, you can achieve a similar outcome by using channels within a team. Here's how you can do it:

1. Create a Private Team:
   • Create a new private team and invite only the administrators.
   • Create a specific channel within this team for announcements.
2. Restrict Posting Permissions:
   • Go to the channel settings and set the permissions so that only administrators can post messages.
   • This can be done by selecting Manage channel > Permissions and ensuring only admins have posting rights.
3. Use a Shared Channel:
   • Create a shared channel and invite only the administrators as members.
   • Administrators can post announcements directly to the shared channel, which will be visible to all members of the team.
4. Information Barriers:
   • You can set up Information Barriers to restrict communication between individuals or groups. This feature is more advanced and might require specific configurations.
5. Microsoft 365 Group:
   • Create a Microsoft 365 group and add all members.
   • Set up the group to only allow email-based communication, where only administrators can send emails to the group.

These methods can help you create a controlled environment where only administrators can post messages. Hope this can help. If there is any update, please feel free to update me. I will continue to help you based on the information you provide. Your understanding and co-operation are highly appreciated.

Thanks for your precious time. Have a nice day.

Sincerely

Katherine