What can Microsoft planner do?

Planner is great for sharing tasks between team members. You can create so called "Buckets" and put in them topic related task cards. Then appoint the card to a team member(s), appoint bullet points of activities and set due dates, importance of the task. Once a bullet point is completed in can bi stricken through and this adds to the completion % of the whole task Card. It is really helpful tool to plan regular, repeating activities that need to be shared with others. Helps with progress monitoring. Planner can also present task Cards due dates on a calendar and you can get insights on performance of tasks - how many were out of date v/s how many completed on time. It also sends notifications to outlook for outstanding items and due deadlines.