I have a project which is inactive and I cannot change it back to active. The active field is grayed out and will not allow editing.
Check the financial status. It must be set to Closed in order to activate the project.
Release : 15.9.1
Component : CA PPM SAAS PROJECT MANAGEMENT
If the status is alreaady Closed, change it to Hold, save, change it back to Closed.
Then try to activate the project.