How to Update Tasks & Planning Details
Right-click on an existing task and choose “Planning Detail” to open the Planning Dialog.
Update Working hours, Start date, or end date for this task
Configure recurrence options as needed (Learn more: Recurring Tasks)
Add more assignees: Click the button to add more team members who will work on the same task.
(Learn more: Multiple assignees planning)To remove an assignee from the task, click the button beside their entry.
Click Save to finalize updates