Galaxy S8 repetitive vibration for notifications

[anon(10233138)]

WhatsApp, Snapchat, Facebook, messages etc until the notification is opened the phone will vibrate every 10 seconds or so how do I stop this without completely turning vibration off?

 

[prissysox]

WhatsApp, Snapchat, Facebook, messages etc until the notification is opened the phone will vibrate every 10 seconds or so how do I stop this without completely turning vibration off?

This is wierd as I've never heard of a nag unless it was turned on by a 3rd party app.

 

[anon(238680)]

Look at Settings/Accessibility/Notification Reminder.