We really miss the 3 features below. If you see the need for your team, please vote:)
- https://microsoftteams.uservoice.com/forums/555103-public/suggestions/38535709-convert-private-channel-to-public-channel, right now if you have created a private channel, there is no way to convert it to public channel or vice versa
- https://microsoftteams.uservoice.com/forums/555103-public/suggestions/38268904-allow-guest-user-to-upload-files-in-teams-chat, so stupid that Guest user can only copy and paste screenshot, but there is no way for them to attach file in the chat. Almost impossible to collaborate with Freelancers or external team members
- https://microsoftteams.uservoice.com/forums/555103-public/suggestions/39051706-option-to-add-user-s-or-group-s-to-a-channel-wit. Right now to add an external user to a channel, we have to first add the users to its mother Team Group first, then we have to make the channel private before adding he or she to the private channel.