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    Pre-populating email address in subscription forms through visible fields

    Version 2

      Note: Please ensure that you have access to an experienced JavaScript developer, because Marketo Technical Support is not set up to assist with troubleshooting custom JavaScript.


      The default subscription management records the email address through hidden fields when users click the unsubscribe link in emails.

      A simple JavaScript can capture the email parameter and pre-populate a visible field.

      Drag and Drop a "Custom HTML" object into the top of the unsubscribe landing page.

      Add the following code:


      <script language="Javascript" src="/js/public/jquery-latest.min.js" type="text/javascript"></script>

      <script src="/js/public/jQueryString-2.0.2-Min.js" type="text/javascript" ></script>


        // to set cookies.  Uses noConflict just in case

        var $jQ = jQuery.noConflict();

        var pEmail = $jQ.getQueryString({ ID: "Email" });


      document.getElementById("Email").setAttribute("value", pEmail);




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