Use the PLM 360Milestones tab to assign milestones to states in a workflow. The tab is available only in workspaces with workflow. Permalink
By assigning milestones to the states in a workspace's workflow you have an added measure of control over items in the workspace as they progress through the workflow step by step. For even more control, you can track multiple items with milestones by adding them to a project in the Project Management tab.
Workflow State. Milestones are associated with the transition of a workspace item to or from a state in the workflow of the workspace.
Milestone Event. A Milestone Event identifies whether a Milestone represents a transition to, or a transition from the associated workflow state. There are two types of Milestone Event:
Target Date. Use a milestone to set a target date for the associated Workflow transition, and to track the achievement of the transition against this date. Each milestone requires a target date.
Status. Indicates whether the associated milestone event is yet reached. The status of a milestone is independent of its target date.
+/- days from Target Date. Milestones are tracked with a +/- days value indicating the following:
Example 1: On 09/09/11, a milestone with a target date of 09/28/11 and a status of Milestone event awaiting shows a value of -19d.
Example 2: A milestone with a target date of 09/02/11 with a status of Milestone event reached, and the associated milestone event was reached on 09/08/11, shows a value of +6d.
Warning days before. You can assign a warning period for each milestone, defined as a number of days before the target date. See the following sections to learn how to apply warning periods.
Workflow Progress (%). The total percentage of progress through the workflow upon completion of a milestone (optional).

Green/Orange/Red Color-Coding. The +/- Days from target date column colors indicate the following:
In both cases, the +/- Days from Target Date shows as a negative (-).
Item Header State This color-coding is reflected in the color of the item header icon as follows:

(Green) Associated milestone on time.
If you have permission to view the milestones of a workspace, the Milestones tab is visible on the workspace page.

| A | Milestone event reached. |
| B | Milestone event awaiting. |
| C | Milestone event achieved late, one day after target date. |
| D | Milestone event awaiting, and late. The date today is two days past target date. |
| E | Milestone event awaiting, and close to being late. The date today is two days from target date, but within the warning period of seven days. |
| F | Milestone is on time. The target date is 33 days from today, and outside the warning period. |
| G | Upon completion of this milestone, workflow progress is at 30%. |
If you have permission to add a milestone to a workspace item, an Add button is visible on the Milestones tab.
If you have permission to edit the milestones in a workspace, an Edit button is visible on the Milestones tab.
Shift the target date on milestones
To enable the Milestones tab in a workspace:
For more help, see About Permissions and Set up Permissions.