Troubleshoot Slack notifications

Having trouble with Slack notifications? This article will help you to troubleshoot common issues.


An overview of common notification issues


⚠️ Stuck badge notifications

Learn how to troubleshoot.

A ghost or phantom notification that won’t go away.

⚠️ Not receiving notifications

Learn how to troubleshoot.

You’re expecting a notification but nothing comes through.


⚠️ Delayed notifications

Learn how to troubleshoot.

When your notifications take longer to show up
than expected.

⚠️ No notification sounds

Learn how to troubleshoot.

A notification comes through, but you don't hear a sound.


What causes notification issues?

  • Bad or corrupted cached data
  • Browser preferences or settings
  • Windows or Mac system settings (such as Do Not Disturb or Focus assist)
  • Mobile devices or apps that interfere with notification delivery


Stuck badge notifications

Ever had a notification badge but no new activity to see? This is usually related to some bad cached data.

Desktop

iOS

Android

Step 1: Mark everything as read

  1. From the desktop app, open the affected workspace.
  2. Press Shift Esc.


Step 2: Clear your cache

  1. Click Help in your computer’s menu bar.
  2. Select Troubleshooting, then Clear cache and restart.


Step 3: Send us your logs 

Collect logs from the Slack desktop app and send them to us.

  1. Click on Help in your computer's menu bar.
  2. Select Troubleshooting, then Report issue.
  3. Add some details about your issue, then click on Send us a message. Your logs will automatically be attached when you send your message.

Step 1: Clear your app cache

  1. Open the Settings app on your iOS device.
  2. Select Slack, then choose Reset cache on next launch.
  3. Reopen Slack.


Step 2: Send us your logs

Collect logs from the Slack app and send them to us.

  1. Tap  You at the bottom of your screen.
  2. Tap Preferences.
  3. Tap Send feedback.
  4. Include a brief summary of the issue, then tap Compose report.

Step 1: Clear your app cache

  1. Tap  You at the bottom of your screen.
  2. Tap Preferences.
  3. Tap Advanced.
  4. Tap Reset cache and confirm.


Step 2: Send us your logs

Collect logs from the Slack app and send them to us.

  1. Tap  You at the bottom of your screen.
  2. Tap Preferences.
  3. Tap Send feedback.
  4. Include a brief summary of the issue, then tap Report issue.


Not receiving notifications

Sometimes your system settings interfere with notification delivery. If you’re not receiving notifications, give these steps a try.

Tip: Make sure that you haven't paused notifications in Slack. If you see a  do not disturb icon next to your name, visit Pause notifications with do not disturb to learn how to resume notifications. 

Mac

Windows

Browser

iOS

Android

Check your macOS notification preferences

  1. Open your computer's System preferences, then click on Notifications.
  2. Select Slack from the list.
  3. Set the Slack alert style to either Banners or Alerts. If your device is running macOS 10.15, make sure to toggle Allow notifications from Slack on before choosing an alert style.

Check your macOS do not disturb settings

  1. Click on the  three horizontal lines icon in the top right corner of your screen to open the Mac notification centre.
  2. Click on the Notifications tab.
  3. Locate Do not disturb and make sure that it’s been toggled off.

Check your settings for Notifications & Actions

  1. On Windows 10, click the Start menu.
  2. Select Settings, then System.
  3. From the right sidebar, click on Notifications & actions.
  4. Locate Slack in the list and check if notifications have been enabled.

Check your Focus assist settings

  1. On Windows 10, click the Start menu.
  2. Select Settings, then System.
  3. From the right sidebar, click on Focus assist.
  4. Select Off to disable Focus assist and begin receiving notifications.

Note: If notification sounds stop working on Windows 10, check to make sure that Windows quiet hours are not active.


Enable visual effects on Windows 7

Slack needs certain visual effects enabled in order to send you notifications. If you're using Windows classic theme, follow the steps below to turn those effects on:
  1. Open the Start menu.
  2. In the search bar, type Transparency.
  3. Select Find and fix problems with transparency and other visual effects.
  4. Run the wizard to automatically turn on visual effects.

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

Chrome

  1. From the Chrome menu at the top of your screen, select Preferences.
  2. Click on Privacy and security in the left sidebar, then click on Site settings
  3. Below Permissions, select Notifications
  4. Make sure that Sites can ask to send notifications has been toggled on.

Firefox

  1. From the Firefox menu at the top of your screen, select Preferences.
  2. Click on Privacy & security in the left sidebar.
  3. Below Permissions, click on the Settings button to the right of Notifications.
  4. Make sure that your Slack workspace is included in the Notifications permissions list.

Safari

  1. From the Safari menu at the top of your screen, select Preferences.
  2. Click on Websites, then select Notifications from the left sidebar.
  3. Make sure that your Slack workspace is allowed to send notifications.

Step 1: Troubleshoot your notifications

  1. Tap  You at the bottom of your screen.
  2. Tap Notifications.
  3. Tap Troubleshoot notifications to run the diagnostic test.

The test will check your notification settings and will flag any issues.

Tip: Power-saving mode or performance optimisation apps may also prevent Slack from sending notifications. If using one of these, try disabling it or whitelisting Slack.


Step 2: Send us your logs

Collect logs from the Slack app and send them to us.

  1. Tap  You at the bottom of your screen.
  2. Tap Preferences.
  3. Tap Send feedback.
  4. Include a brief summary of the issue, then tap Compose report.

Note: If the steps below don't help, check out Known issues with Android notifications for more information.

Step 1: Restart your phone

Sometimes notification trouble can be fixed by restarting your device.


Step 2: Troubleshoot your notifications

  1. Tap  You at the bottom of your screen.
  2. Tap Notifications.
  3. Tap Troubleshoot notifications to run the diagnostic test.

The test will check your notification settings and will flag any issues.

Tip: Power-saving mode or performance optimisation apps may also prevent Slack from sending notifications. If using one of these, try disabling it or whitelisting Slack.


Step 3: Check settings for Google Play services

  1. Open the Settings app on your Android device.
  2. Click Application manager, then locate Google Play services.
  3. Make sure Show notifications is ticked.

Note: Google Play Services is needed to receive notifications on Android. Make sure that your device is supported


Step 4: Send us your logs

Collect logs from the Slack app and send them to us.

  1. Tap  You at the bottom of your screen.
  2. Tap Preferences.
  3. Tap Send feedback.
  4. Include a brief summary of the issue, then tap Report issue.

Tip: Need help troubleshooting your email notifications? Visit Trouble receiving emails from Slack.


Delayed notifications

Notifications running late? If your notifications are delayed, it may be due to settings on your device.

Windows

iOS

Android

Step 1: Change how Slack sends notifications

  1. From your desktop, click on your profile picture in the top right.
  2. Select Preferences from the menu.
  3. Below Deliver notifications via, select Slack's built-in notifications from the drop-down menu.


Step 2: Send us your logs

If the above step didn’t resolve the issue, collect logs from the Slack app and send them to us.

  1. Click on Help in your computer's menu bar.
  2. Select Troubleshooting, then Report issue.
  3. Add some details about your issue, then click on Send us a message. Your logs will automatically be attached when you send your message.

Step 1: Check your mobile notification settings

  1. Tap  You at the bottom of your screen.
  2. Tap Notifications.
  3. Tap Notify me on mobile, then choose As soon as I'm inactive.


Step 2: Send us your logs

If the steps above didn't resolve the issue, collect logs from the Slack app and send them to us so that we can help to troubleshoot.

  1. Tap  You at the bottom of your screen.
  2. Tap Preferences.
  3. Tap Send feedback.
  4. Include a brief summary of the issue, then tap Compose report.

Step 1: Check your mobile notification settings

  1. Tap  You at the bottom of your screen.
  2. Tap Notifications. 
  3. Tap Notify me on mobile, then choose As soon as I'm inactive.


Step 2: Send us your logs

Collect logs from the Slack app and send them to us.

  1. Tap  You at the bottom of your screen.
  2. Tap Preferences. 
  3. Tap Send feedback.
  4. Include a brief summary of the issue, then tap Report issue.

Note: Mac users don’t typically experience issues with delayed notifications. If you're having trouble, contact our Support team for help.


No notification sounds

Not hearing your notification sound when you receive a notification? This may be caused by your device settings.

Mac

Windows

Step 1: Check if sounds have been enabled

  1. Open your computer's System preferences.
  2. Select Notifications.
  3. Find Slack in the list and make sure that Play sound for notifications has been enabled.


Step 2: Check your audio output settings

  1. Open your computer's System preferences.
  2. Select Sound, then click on Sound effects.
  3. Next to Play sound effects through, check to see if the correct device is selected, then make sure that your alert volume is turned up.


Step 3: Send a test notification

  1. From your desktop, click on your profile picture in the top right.
  2. Select Preferences from the menu.
  3. Below Sound & appearance, click on Show an example.

Step 1: Check Windows notification settings

  1. On Windows 10, click the Start menu.
  2. Select Settings, then System.
  3. From the right sidebar, click on Notifications & actions.
  4. Locate Slack in the list and check if Play a sound has been enabled.


Step 2: Send us your logs

If the steps above didn't resolve the issue, collect logs from the Slack app and send them to us so that we can help to troubleshoot.

  1. Click on Help in your computer's menu bar.
  2. Select Troubleshooting, then Report issue.
  3. Add some details about your issue, then click on Send us a message. Your logs will automatically be attached when you send your message.

Note: External monitors can cause issues with notification sounds. Try disconnecting your monitor and see if the problem persists.