Ldap Notification built-in services

We are trying to use the pub.client.ldap:registerNotification built-in service to create a notification for Ldap (Active Directory).
We are able to successfully register the notification using the above service but when we update the same object using pub.client.ldap:modify service, the Notification service specified in the registerNotification input does not get invoked.

Can anyone please share any information on this.
Is there any other additional setup required in Integration Server or Ldap server?
Is there any Listner created in Integration Server after registering, If yes, then where we can check the listner in the Integration Server?