Apologies if this is repeated. I looked and I see similar posts but, but I specifically just want to solve the problem from my screenshot attached. If I could just use the same formula field across multiple lists, I could then roll them up in a report. All I'm trying to do is calculate the hours remaining for a scope across 2 lists which represent projects within that scope and then add them together in a dashboard so I can see total remaining hours easily. The fact that I can't is bonkers.