| <?xml version="1.0" encoding="UTF-8"?> | 
| <ValidationRule xmlns="http://soap.sforce.com/2006/04/metadata"> | 
|     <fullName>Bukeyong_check</fullName> | 
|     <active>true</active> | 
|     <errorConditionFormula>(Isnew() || Ischanged(Delivered_Product__c))&&  | 
| left(Delivered_Product__r.Name,3)='不可用'</errorConditionFormula> | 
|     <errorDisplayField>Delivered_Product__c</errorDisplayField> | 
|     <errorMessage>不可用设备不能新建修理</errorMessage> | 
| </ValidationRule> |