The Update Needed field indicates whether a Microsoft Office Project Server update should be sent to the assigned team members because of changes to a task's start date, finish date, or assignments.
There are several categories of Update Needed fields. Learn more about field categories.
Data Type Yes/No (Yes/No field: A type of field with content set to either Yes or No; also known as a Boolean field or a True/False field. For example, the Recurring field indicates whether the task is a recurring task.)
Update Needed (task field)
Update Needed (resource field)