This is currently in internal testing rings at Microsoft, and the feature team is targeting a release to the public in early Q2.
~Alex & the Teams teamPaul Stephenson commented
I appreciate that you can now get notified when a task is assigned to you. That will make Plannar much more usable for us within teams. However I was disappointed that I did not receive notifications for comments on tasks I am assigned to or responses to comments that I made on tasks. We would really like to be able to have discussions about specific tasks on the tasks themselves, but it is really hard to do so when no-one is notified about responses.
This item is still under review by the feature team. I have no details as to when a decision might happen.
6,898 votesPaul Stephenson commented
We really need a way to get notifications for our Plannar Messages within teams. Most of the time when someone messages on a plannar task it is completely lost since it doesn't show up as a message within teams.
We are still considering this feature for future releases, and will continue to update the status when it changes.