Elapsed_time_2__c false IF(ISNULL(Trable_occur_day_c__c),0, if ( isnull( From_c__c ), now() - Taking_call_Time_c__c, From_c__c - Taking_call_Time_c__c) *24) BlankAsZero 收电-初次对应经过时间 18 false 0 false false Number false