In the new Portfolio board I have the timeline summary from each of the project boards. This is the actual timeline coming from each board. I also have planned timeline that I manually entered. I want to calculate #days late or early for each project by days ddifference between the planned end date and the actual end date.
So, in the portfolio I am trying to calculate Days({Planned Timeline#End}-{Actual Timeline#End}).
This works always for planned but for Actual it only works when there is only one task in the project board. Add a second task and it errors.
How can I do it?