I need to read the tasks in a Plan on a daily batch process. I am retreiving the Plan ID during registration process by delegated permissions and save this ID in the application's database. On the daily batch process I am trying to access this Plan's tasks using; https://graph.microsoft.com/v1.0/planner/plans/{Plan ID}/tasks
I am getting "401 - Unauthorized: Access is denied due to invalid credentials" error. I've got the following permissions in the screenshot below, am I missing the required one or is it not possible to access this service with Application type permission?