Android

1. Tap  on the bottom right.
2. Tap .
3. Tap 'Notification settings'.
4. Tap 'Message Notification', 'Mail Notification', 'Calendar Notification', or 'Task Notification' to select a notification sound for each service.

iOS

1. Tap  on the bottom right.
2. Tap .
3. Tap 'Notification settings'.
   If the 'Sounds' is turned off, turn on and access OS settings. On OS settings, tap 'Notifications', turn on 'Sounds', and then go back to LINE WORKS.
4. Tap 'Sound' to select the notification sound.
5. Tap 'Save'.