Show "unread" message count on badge in Teams tab

[raghava9441]

Hi

We are showing a intranet webpage in Teams through a custom Tab. 

when ever i get new message in my app . I would like to display the number of unread messages as a badge on the icon of the app, just like the unread count in a Team channel, so the user doens't have to actively check the page, but is informed of new things to do through the badge.

I can't find a method on how to make this possible. Anyone can help me out? Search engines don't help me out either. Is it even possible for a custom app/tab?

[#2]

Click the menu icon beside your profile icon.
Follow this directory, Settings > Notifications, then click the “Edit” button under “Chat”.
Set notifications for @mentions, messages, and likes & reactions to “banner” or “banner and feed”.

Regards,
Rachel Gomez