jindon, that one does populate the values into the cells of the Exercises sheet, but it takes the values of the Reps into account, which is not what it should. It should only take the values of Weight from the Week sheets. Unfortunately, still no action on the Week sheets, where column B suppose to auto-populate the highest weight for the entered exercise in column A. By the way, I just thought of this one other thing: I think, that auto-populated value should not be coming from the Exercises sheet, but it should rather run it's own lookup, because the Exercises sheet only updates its values when the sheet is refreshed.