Microsoft Project - Tasks - Milestones

Milestones 

A milestone is a marker or pointer to mark an important point within the project.  Milestones can be inserted into the project at any one or many points.  They will be shown differently on the Gantt Chart. (a black diamond on the standard view).  Milestones can also be filtered out so that they are the only things displayed.

Milestones are usually formatted differently so that they show the dates on the Gantt Chart.

A milestone at the end of the project will show the finish date on the chart rather than trying to guess the value up at the timescale.

To create a milestone 

1. Enter the milestone name as a task

2. Change the duration to 0 (zero)

The changing of the duration is what converts a normal task to a milestone. Another way of making a task into a milestone is to do it via the task information



On the advanced tab, in the bottom left corner a task can be marked as a milestone, but the task will still keep its duration.