Please provide us with more details on the business logic you want to implement and specify which notifications exactly this is about (in DCM or communication panel?)
To elaborate more,
While adding an activity element in business process or in DCM, the activity notification shows under "Business Process Tasks" in communication panel (refer screenshot). Under the same "Auto generated page" or "Pre configured pages" are also shown.
Our requirement here is to hide those activity notifications from "Business Process Tasks", but keep the "Auto generated page" or "Pre configured pages" notifications.
If you do not need these tasks to be shown and completed for the process to continue, you can create activities with a simple "Add data" element in the business process instead of "Perform task".
Would this solve your task?
We need some of the tasks to be completed by the user to proceed, but we don't want to show those tasks in the notification panel.