To access Microsoft Planner, simply click here. This will open Microsoft Teams and bring you to the planning board.
If you use the Microsoft Teams App, it is recommended you "add" planner to your teams permanently. This makes the Planner tab show up in your left-side menu bar (under activity, chat, teams, calendar, etc.)
To do this, click "Apps", then search planner, and click "Add." That's it! Planner will now always show up in your Teams sidebar.
