Good advice. That got me up and running for the first nested statement. valueexpression=IF({DE:Current WIP Date}>=0,IF(ISBLANK({DE:Current WIP Date}),WEEKDAYDIFF({DE:WIP Design and Create Date},{DE:Completed Date}), WEEKDAYDIFF({DE:Current WIP Date},{DE:Completed Date})),IF(ISBLANK({DE:WIP Design an...