Elapsed_day_from_Repair2__c false IF(ISBLANK(Failure_Occurrence_Date__c),null, IF(ISBLANK(Repair_Shipped_Date__c),(Today() - Failure_Occurrence_Date__c ) , (Repair_Shipped_Date__c - Failure_Occurrence_Date__c))) BlankAsZero 修理TAT(到RC返送日) 18 false 0 false false Number false