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  • MEER ALI
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2 replies

Apex Trigger not working

What is wrong with this trigger , it is not working . 
trigger RestrictContactByName on Contact (before insert,before update) {
  
List<Contact> cons = [Select Id from Contact where (Id IN :Trigger.New)];
    for (Contact c : cons)   {
        
        if(c.LastName == 'INVALIDNAME') 
             {
           
            c.AddError('The Last Name "'+c.LastName+'" is not acceptable');
              }

    }

    }