Direct messaging allows any member to start a conversation with one or more other members. Like private channels, all messages are only seen by included members. They are perfect way to get in touch with another user, without using any other messaging platform. Direct messages are separate from your text messages, and are for your internal communication purposes. Your messages will not affect your SMS count.
A new channel will be created containing the member(s) you selected. Direct messages are organized by the display name(s) of the member(s) included. Messages sent in the channel will go to all members added. If direct messages contain more than 2 members, the total number of users is displayed instead of a profile photo next to the display names.