LastMonthPlanAmount__c false IF(Payment_Plan_Date_First__c <= Date(YEAR(TODAY()), MONTH(TODAY()) , 1)-1, Payment_Plan_Sum_First__c, 0) + IF(Payment_Plan_Date_Second__c <= Date(YEAR(TODAY()), MONTH(TODAY()) , 1)-1, Payment_Plan_Sum_Second__c, 0) + IF(Payment_Plan_Date_Third__c <= Date(YEAR(TODAY()), MONTH(TODAY()) , 1)-1, Payment_Plan_Sum_Third__c, 0) + IF(Payment_Plan_Date_Forth__c <= Date(YEAR(TODAY()), MONTH(TODAY()) , 1)-1, Payment_Plan_Sum_Forth__c, 0) + IF(Payment_Plan_Date_Fifth__c <= Date(YEAR(TODAY()), MONTH(TODAY()) , 1)-1, Payment_Plan_Sum_Fifth__c, 0) + IF(Payment_Plan_Date_Sixth__c <= Date(YEAR(TODAY()), MONTH(TODAY()) , 1)-1, Payment_Plan_Sum_Sixth__c, 0) 上月止对计划付款金额 18 false 2 false false Number false