Does anyone successfully created a notification center for a knack app?

Does anyone successfully created a notification center for a knack app including icon alert to let user's know that a new message is delivered by the system?

Thanks!

Not absolutely clear on what you are trying to acomplish but I use Integromat to send messages to us in Teams when specific actions happen (invoice paid, customer loaded, item deleted). I have a specific channel setup in teams called Knack Alerts.

If you are talking about within the app, I use dashboard style tables to show recent messages or notes requiring response.