Adjusting alert preferences for messages, mentions, and activity within Microsoft Teams
Teams notifications can sometimes be delivered later than the actual message timestamp, even when there is no officially reported Microsoft service incident. Notification delivery can be affected by device power-saving states, background app restrictions, network conditions, synchronization between Teams clients, and OS-level notification handling.
Since the notification delay occurred on both the PC and mobile device, it may indicate a temporary delay in notification delivery or processing. While power-saving mode on a PC is a known factor that can cause delayed notifications, mobile devices can also experience notification delays due to battery optimization, background processing restrictions, network transitions, or push-notification timing.
To reduce the possibility of this happening again, I recommend the following:
- Temporarily disable power-saving mode on both the PC and mobile device and test Teams notifications again. If notifications work normally afterward, power management may have contributed to the delay.
- Check Teams notification settings by going to Teams > Settings > Notifications and activity. Make sure chat notifications and notification sounds are enabled. You can also use the Test notification option if available.
- Check the mobile device's notification permissions and make sure Teams is allowed to send notifications and play sounds.
- Check battery optimization/background restrictions for Teams on the mobile device. If Teams is restricted from running in the background, notifications may be delayed. On Android in particular, consider excluding Teams from battery optimization.
- Test using 5G/mobile data instead of Wi-Fi. If the notification delay occurs while connected to Wi-Fi, temporarily switch to 5G and test again. If notifications work normally over 5G but are delayed over Wi-Fi, the Wi-Fi/network environment may be contributing to the issue. You can also perform the reverse test.
- Update and restart Teams on both devices. Completely close Teams, reopen it, and make sure the latest version is installed.
- Perform a controlled test. Have someone send several Teams messages at different times while both devices are awake and not in power-saving mode. Record the message timestamp and the exact time the notification appears. This can help determine whether the delay is reproducible.
If the notifications are still delayed on both PC and mobile after these checks, particularly if multiple messages again generate notifications together several minutes later, the issue may be related to a temporary Teams notification/push-delivery problem. In that situation, I recommend reporting the issue through Teams feedback and including the exact message times and notification times. In the mobile app tap your profile picture in the top left of the app > Settings > Help and feedback > Send feedback.
If the answer is helpful, please click "Yes". If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in the forum documentation to enable e-mail notifications if you want to receive the related email notification for this thread.