Troubleshoot desktop notifications

Having trouble with notifications on your desktop app or browser? Not to worry! This guide will help you diagnose and solve the problem. 


Notification basics

✅ We will send notifications when 

  • An @mention is used (e.g., @everyone, @here, @username, etc.)
  • A message contains one of your keywords
  • Someone replies to your message in a thread 
  • Someone posts in the #general channel

🚫 We won't send notifications when 

  • A channel or workspace is muted
  • Do Not Disturb is active
  • You're active in the channel when the message is sent
  • Notifications are turned off for your operating system 

Note: If you edit a message to add an @mention, Slack won't send that person a notification.


Troubleshoot the desktop app 

Step 1: Check your DND settings

If you're not getting notifications, it's possible that Do Not Disturb is on. You can check this in your preferences.

  1. From your desktop, click your workspace name in the top left.
  2. Click Preferences from the menu.
  3. In the Notifications tab on the left, under Do Not Disturb, make sure those settings are not interfering with notifications.


Step 2: Send a test notification 

  1. From your desktop, click your workspace name in the top left.
  2. Click Preferences from the menu.
  3. In the Notifications section, under Sound & appearance click Show me an example of a notification.

If all goes well, you should see a notification message pop up saying What do you know? It works.


Step 3: Check your operating system

If the test notification fails to load, you may want to check if your operating system is blocking notifications.

Mac OS


  1. Go to your System Preferences and click Notifications
  2. Find Slack in the list on the left-hand side.
  3. Set the Slack Alert Style to either Banners or Alerts.

Tip: Banners will stay on screen for a few seconds and Alerts will stay on your screen until dismissed. 

  1. Open the Windows Action Center from the bottom right of your taskbar. 
  2. Click All Settings, then System
  3. Select Notifications and Actions from the sidebar. 
  4. Make sure Get notifications from apps and other senders option is on.
  5. Finally, find Slack in that list and make sure the option to send notifications is turned on.  


Troubleshoot Slack in your browser 

If you use Slack in a browser, you’ll want to check your browser settings to make sure notifications are enabled.




  1. From the menu, click Preferences.
  2. From the bottom of that page, click Advanced.
  3. Under Privacy and Security, click Content Settings, then Notifications
  4. Make sure Ask before sending (recommended) is turned on. 
  1. From the menu, click Preferences
  2. Click Privacy & Security, then Settings (across from Notifications).
  3. Make sure your Slack workspace is included in the Notifications Permissions list.
  1. From the menu, click Preferences.
  2. Under the Websites tab, select Notifications.
  3. Make sure your Slack workspace is allowed to send notifications. 

Remember: You’ll only get notifications for workspaces that you have open in your browser.

Still having trouble? If you're still not getting notifications, please drop us a line! We're here to help. 

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