Milestones are great for keeping track of important dates or project updates. They appear as colored dots at the top of the Schedule that can be hovered over to reveal more information.
From the Project plan view of the Schedule, they display across from the project name on their assigned dates.
You can edit existing milestones directly on the Schedule in both views.
To create a new milestone:
From the Project plan view of the Schedule, click a date next to the project name for which you want to create a milestone.
From within an individual project's details on the Manage page, select the Milestones tab.