Add due date to flag
There is no way to assign a due date for flags like you can in Outlook and use to be able to do in the old Outlook for the Web.
Graham Golding commented
This duplicates other requests about flagging could it consolidated into one request?
In the old version when you right clicked on the flag to flag an email, you could designate a due date (today, no date, next week, etc) now you cannot. It's a minor detail, but people like myself who habitually use flags and the task manager to prioritize their work will now have an extra step of going into the task manager to manually assign due dates to everything they flagged.