title: How i can make a specific code for a notification in a column?
body: <p>I need that when you write only in a certain cell send me an email from who did it</p>
  
  <p>The code i use is</p>
  
  <pre><code>function myFunction() {
    var user = Logger.log(Session.getActiveUser().getEmail());
    if(user =='user-email'){
      MailApp.sendEmail('destination-email', 'subject', 'test trigger: ' + user);
    }
  }
  </code></pre>
  
  <p>But i need when someone write on the column "D" and only "D" send me a email notification</p>