We all uses the iPhone regularly may sometimes find a message or SMS which has a notification twice with the same message. It will be the first notification as usual and soon there will be another warning. If you do not want to be reminded again, it can be easily closed as well
How to turn off duplicate message alerts on iPhone
- Go to settings
- Choose Notifications> Messages
- Scroll down to the latest side, select Schedule notifications
- Press Reminder> No Select at all
This is the only way to turn off duplicate message alerts. The default value of the notification is to repeat the alert once every 2 minutes.