I am getting the formula right - IF 'SYS01 Time Settings By Week'.'NOT First Week of Timescale?' THEN PREVIOUS(Ending Inventory) ELSE 'DAT01 Beginning Inventory'.Beginning Inventory

However, I am not getting the desired results. I am getting IF and THEN part correct but i am not getting ELSE part correctly i.e., ELSE 'DAT01 Beginning Inventory'.Beginning Inventory. So Please guide what is the issue with this.
