What Does the Green Dot Mean on Slack?

Understanding Slack Green Dot

Slack uses three distinct presence indicators, and the green dot is the most visible. A solid green dot means active: the person has recently interacted with Slack through typing, clicking, or scrolling. A hollow circle (sometimes appearing slightly yellow) means away: the person has not interacted with Slack for roughly 10 minutes, or all their devices have disconnected. A third indicator — a green dot with a small 'Z' — appears when someone has Do Not Disturb enabled. The green-with-Z means the person is active in Slack but has paused notifications, so messages will be delivered silently. The green dot with Z is one of the most commonly misunderstood Slack indicators — many users search for what the Z means or wonder why their Slack shows a green circle with Z instead of the normal solid green. Each of these indicators appears next to the person's profile picture in the sidebar, in direct message headers, in channel member lists, and on profile cards. What 'active' actually means at a technical level is specific and narrow. The green dot requires recent input within the Slack application — keyboard strokes, mouse clicks, or scrolling inside a Slack window. Simply having Slack open and visible on screen is not sufficient. Reading a long message without scrolling does not generate an activity signal. Working in another application — even one right next to a visible Slack window — produces no signal to Slack's servers. The Slack desktop client monitors window focus and input events, and only sends activity heartbeats when it detects direct interaction. The green dot disappears when any of several conditions occur. The most common is inactivity: after roughly 10 minutes without Slack interaction, the server switches presence to away and the green dot becomes a hollow circle. Instant triggers include screen lock, laptop sleep or lid close, app termination, and network disconnection. On mobile, the green dot disappears when iOS or Android suspends the Slack app in the background, which typically happens within a few minutes of switching to another app. An important distinction exists between the green dot and custom status emojis. The green dot is automatic and reflects real-time activity detection. A custom status emoji (like a coffee cup or headphones icon) is set manually by the user and persists until they remove it or it expires. You can have a green dot with no custom status, a hollow circle with a custom status set, or any combination. They are independent systems. Managers and teammates cannot see green dot history. Slack only exposes the current presence state — there is no log or timeline showing when someone was active versus away over the course of a day. This means the green dot is a point-in-time signal, not a productivity metric. Some workplace monitoring tools capture presence snapshots at intervals, but this is external to Slack and not a native capability.