Troubleshoot mobile notifications

Not getting mobile notifications on iOS or Android? You can use the troubleshooting tool in the mobile app to diagnose the problem. 

Troubleshooting overview

  1. Use the in-app tool to troubleshoot your notifications.
  2. Refer to this guide to learn how to address your diagnostic report.
  3. Rule out any other settings that may block Slack from sending notifications to your device. 

Remember: Slack won't send mobile notifications if you've already seen the message on another device. Read up on how Slack notifications work. 🔔

Step 1: Troubleshoot your notifications 

Here's how to use the in-app troubleshooting tool:



  1. Swipe right to left to open the sidebar. 
  2. Tap Settings
  3. Tap Notifications
  4. Tap Troubleshoot Notifications.
  1. Tap the   Overflow menu in the top right.
  2. Under Notifications, choose Settings.
  3. Tap Troubleshoot notifications.

The tool will automatically run a diagnostic test. When it's finished, you'll get a report explaining which settings to adjust or issues to address.


Step 2: Understand your diagnostic report

Your diagnostic report will flag anything that’s interfering with your mobile notifications and explain what to do next. Here are the potential problem areas the test will cover:

Slack settings

One or more of your mobile notification preferences is preventing Slack from sending notifications. You could be in Do Not Disturb mode, or you may have chosen not to receive notifications for a particular workspace. We'll refer you to the appropriate settings in your report.

Device settings 

This means the settings for your mobile device are not configured to receive notifications from Slack. You'll want to confirm that Slack is able to send notifications by checking your device's general settings.



In your iOS settings, check that you've enabled Slack to send you notifications. You'll be able to choose whether you'd like to receive badges, alerts, and/or sounds:

  1. Tap Settings
  2. Locate and tap Slack
  3. Select Notifications.
  4. Make sure Allow Notifications is toggled on.
  5. Check that all the notification features you want are toggled on.

Check your general settings to confirm that Slack can send notifications to your device:

  1. Tap Settings.
  2. Select Apps, then Slack.
  3. Tap Notifications and make sure the toggle is set to On.

Check that your device is also not in battery saver mode. This would limit background apps from sending notifications:

  1. Tap Settings.
  2. Select Battery, then tap the   Overflow menu in the top right.
  3. Select Battery saver to ensure that it's set to Off.

Play Services (Android only)

Make sure your Android device supports Google Play Services and that the Google Play Services app is up to date:

  1. Open Settings on your device. 
  2. Tap Apps.
  3. Select Google Play Services.
  4. Tap Show app details in store

Token registration

We register a token from your device with our servers in order to send you notifications. If we detect a problem here, we’ll let you know to send us your diagnostic test so we can have a closer look. Tap the Send report button just below your completed diagnostics — we’ll be in touch soon!

Test notifications

The troubleshooting test ends with an automatic test notification. If the test notification fails, we'll let you know if you need to check another issue area, or restart your phone. If a simple restart doesn't do it, you can reset your cache (iOS) or local storage (Android).



To reset your cache, open the Slack app on your iOS device:

  1. Swipe left to open the right sidebar and tap Settings.
  2. Tap Advanced.
  3. Select Reset Cache

To reset your local storage, open the Slack app on your Android device:

  1. Tap the   Overflow menu in the top right.
  2. Tap Settings.
  3. Tap Advanced
  4. Select Reset local storage.

Step 3: Check other app settings

If you've followed the steps outlined in your diagnostic report and still aren't getting notifications, there are a few other things you can try before reaching out for support.

  • Confirm that you're not running a power saving, performance optimization, or security app that prevents Slack from sending notifications. If so, try disabling these apps or whitelisting Slack. 
  • If you're receiving delayed notifications, review and adjust your mobile notification timing.
  • If you're not receiving notifications for a specific channel or DM, you may want to adjust a specific channel notification setting

Still having trouble? If you're still not getting notifications, you can click Send Report at the end of your troubleshoot test to send your diagnostics to our support team. Or drop us a line! We're here to help. 

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