App icon notifications

Slack will notify you of unread activity by displaying a circle on the Slack icon in your desktop notifications area (system tray) or dock. The preferences for this feature differ depending on which app you use.

Mac

Windows

Linux

Unread activity

The dock icon for the Mac desktop app will display a 1 red circle when you have unread activity in Slack.

A red circle with a white dot means there is some unread activity in one of your Slack workspaces.
A red circle with a number indicates direct messages, mentions, or messages containing one of your keywords.


Set your preference

If you'd like to be notified of activity from your app icon — or if you’d prefer not to be — here's how to adjust this preference:

  1. Click your workspace name in the top left to open the menu.
  2. Select Preferences.
  3. Click the Notifications tab.
  4. Under Dock App Icon, check or uncheck Show (•) symbol on icon to indicate unread activity.

You can adjust app icon notifications for each workspace you're a member of — you can turn it off for one while tracking activity for another.

Notification area

When Slack is running, you’ll find a Slack icon in your notifications area. You'll see a blue circle when you have unread activity in one of your Slack workspaces, and a red circle when you've received a mention, announcement, or direct message.

While there’s no option to turn off this circle, you can choose not to leave Slack running when the window is closed:

  1. Click your workspace name in the top left to open the menu.
  2. Select Preferences.
  3. Click to the Windows App tab.
  4. Uncheck the Leave app running in notification area when the window is closed option. 


Taskbar

From Preferences, you can choose to flash the Slack icon on the taskbar when you receive a message by checking the box next to Flash window when receiving a notification.

A red circle with a number indicates direct messages, mentions, or messages containing one of your keywords.

You also have the option to Only flash window when I'm not actively using my computer, which will flash the window only if you receive a notification after your computer has been idle for 10 seconds.

Tip: Checking the option to Flash window and not Only when not actively using my computer will keep the Slack icon on the taskbar when the window closes, regardless of other settings.

Note: If your taskbar setting are configured to use small taskbar buttons, icon badges will not be visible.

Notification area

You’ll find a Slack icon in your notifications area when Slack is running. You'll see a blue circle when you have unread activity in one of your Slack workspaces, and a red circle when you've received a mention, announcement, or direct message.

You can't remove this circle, but you can choose to not leave Slack running when the window is closed:

  1. Click your workspace name in the top left to open the menu.
  2. Select Preferences.
  3. Click the Linux App tab.
  4. Uncheck the Leave app running in notification area when the window is closed option.

Note: The icon in the panel won't indicate if any of your keywords have been used in direct messages, mentions, or messages.

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