How do i add work note when i sent notifiaction

[BoHyun Jung]

This is OOTB Notification 'Notify Change Calendar'

it is added when the notification sent

I want to add my custom notification

How do i add work note when i sent my custom notification?

[Sonam Tiwari]

@BoHyun Jung , 

Looks like your activity stream is already tracking 'Sent/Received Emails'. Whether its custom or OOB, all the emails associated to this record will show up in the activity stream.