When Planner has access to Outlook please include what Bucket the task comes from.
I am a SPED teacher that has to call parents often to gather information. I created one Plan with all my caseload students and they each have their own Bucket. So, when I get a reminder in Outlook to call a parent, I have to access Planner and scan through all the buckets to see what parent I have to call. Please include the Bucket name with the Outlook name