Auto_Loaner_Giveup_StartCalculating_Date__c false IF(Auto_Lost_item_giveup__c = false, NULLVALUE(DATEVALUE(LostReport_Detail__r.LostReport__r.LostReport_approval_time__c), DATEVALUE(Inventory_Header__r.Inventory_Header_approval_time__c)), null ) BlankAsZero false false Date