Planner is a tool that integrates with Microsoft Teams to help teams organize and manage their tasks and projects more effectively.
Note: Planner can only be added to channels that have a standard channel type. Shared and Private channels can't have the Planner app added to them.
When a user is assigned a task:
They receive a notification from Microsoft Teams.
A notification will show on the notifications button.
The user will also receive an email notification.