Restoring an archived Phase allows it to become active and accessible within the Project Schedule again.
By default, the archived Phases and Subphases are hidden. Click Show Archived to see all archived Phases or Subphases directly under a parent.
Archived Phases and Subphases will display a red archive icon.
A single diamond icon indicates a Phase.
A double diamond icon indicates a Phase with Subphases.
Click the three-dot on the archived Phase. Click the Unarchive on the menu.
The Phase will be unarchived.
Unarchiving a Phase or Subphase will not automatically unarchive any Subphases within it. However, all Members assigned to the Phase will be automatically restored upon unarchiving.