In Rocket.Chat, you can have one-on-one conversations or one-to-many conversations with other users in your workspace. They are called Direct Messages (DMs). Your most recent DMs are default listed under the Direct messages section in your Rocket.Chat sidebar.
Types of direct messages
The two types of DMs are as follows:
Direct messages (DMs) are private one-on-one conversations between members of your workspace. You can create a DM with another user on the same workspace (or a different workspace via Rocket.Chat Federation) to communicate and share files privately. It exists between just two users, and no other user can join.
Direct Messages Between Multiple Users allows you to chat with multiple users inside a DM. You can create direct message rooms between several users to exchange messages and files. Unlike private channels, you do not need to specify the name, topic, or if the room is read-only. It works exactly like a 1:1 DM, the only difference is that multiple users are involved.
See the following topics for further details: