RequireSerialNumber true and( OR(IsCompetitorProduct = False, unknow_serial_NO_product__c = false),Loaner_accsessary__c=FALSE )&& ISBLANK(SerialNumber) and( IsCompetitorProduct = False, unknow_serial_NO_product__c = false )&& ISBLANK(SerialNumber) and( IsCompetitorProduct = False, Loaner_accsessary__c=FALSE,unknow_serial_NO_product__c = false )&& ISBLANK(SerialNumber) SerialNumber 不是竞争对手产品，必填序列号(对手产品的话,请选中竞争对手的字段)