Using Chat, you can message individuals and the team/group in real-time.
In the left column, click the team or group.
Click the blue Team Chat or Group Chat button under the cover photo, located to the right.
TIP: Admin can click Disable Replies in the lower right when creating a chat.
In the bottom tray, tap Teams/Groups.
Tap the team or group.
Tap floating blue button in the bottom right.
In the upper right, tap Start.
TIP: Default team settings only allow Admins to start team chats