It sounds like you are asking for Private Channels which should release later this calendar year. You can follow the topic at: https://microsoftteams.uservoice.com/forums/555103/suggestions/16911079
A workaround, for the time being, would be to create a team “support services team” and have “data management” and “tech support” be their own channels.
Thank you for your feedback!
The feature team is still digging into this item. No decision has been made yet.
-WarrenAnonymous shared this idea ·
Due to prioritization of other work-items this has been moved to the backlog. We will update when it is being actively worked on again.