Planner in Microsoft Office 365 lets you track real time status of your team task in the plan.

Step 1: First log in to the portal through

Step 2: Click on the Planner tab.

Step 3: You can view your team task in three categories Not started, In progress, Completed.

Step 4: If the task is completed than you can click on the complete and the task will comes in the completed category bucket.

Step 5: If the task is In progress then you can mark as In progress and the task will come in the In progress category bucket.

Step 6: Click on the Task. Select the In progress, the task comes in the In progress bucket.

This is how you can mange your team tasks in real time scenario.