<?xml version="1.0" encoding="UTF-8"?> 
 | 
<ValidationRule xmlns="http://soap.sforce.com/2006/04/metadata"> 
 | 
    <fullName>Consum_Start_Date_Can_Not_Change</fullName> 
 | 
    <active>false</active> 
 | 
    <errorConditionFormula>ISNEW() == false && ISCHANGED(Consum_Start_Date__c) && NOT(ISCHANGED(Cancel_Select__c))</errorConditionFormula> 
 | 
    <errorDisplayField>Consum_Start_Date__c</errorDisplayField> 
 | 
    <errorMessage>预计使用日不能修改</errorMessage> 
 | 
</ValidationRule> 
 |