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Sravanthi GSravanthi G 

Primary_Address_Reference_Not_Editable is the validation rule if reatil dmscustomer id is not blank and primary address reference is changed trow an error

Primary_Address_Reference_Not_Editable
is the validation rule 
fiekds:
if  reatil dmscustomer id is not blank and primary address reference is changed trow an error message
here this is in accountlink object 

retail dms customer id is account link  field

and primary address referecnce is in account(c)  lookup field of address object(p)
how to create
please help me
ISBLANK( Retail_DMS_Customer_ID__c)
how to create for ischanged with lookup primary address reference field









 
Raj VakatiRaj Vakati
AND(
NOT(ISBLANK(Retail_DMS_Customer_ID__c),
OR(
ISCHANGED(  BillingCountry  ) , 
ISCHANGED( BillingCIty ) ,
ISCHANGED( BillingState ) 
)
)