For Developers: Adding Dynamic Web Content to Tracking Codes

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Example Dynamic Web Content

Adding dynamic web content requires that you create new tracking code, or edit the existing tracking code. The following is an example of tracking code that will show an alert containing the visitor's first name:
 

<!-- Your Lead Gen & CRM Tracking Code -->
    
<!-- Start Dynamic Script Example -->
    <script type="text/javascript">
    var callThisOnReturn = function(resp) {
        if (resp && resp.contact) {
            alert('Hi there ' + resp.contact['First Name']);
        }
    };
    _ss.push(['_setResponseCallback', callThisOnReturn]); 
    </script>
<!-- End Dynamic Script Example -->

Note: Constant Contact offers Professional Services to assist with custom coding.

To create dynamic content for a lead, make sure that you include the callThisOnReturn 
function within your script. This function receives a response object with a lead object inside that will contain all of the standard and custom fields attributed to the lead. All manipulation of the page needs to occur within this function, as the response lead object will not be available outside.

Custom fields will be referred to by their label in the system, just like the system fields. Also, Lead Gen & CRM will only return fields that contain values. This applies to system fields and custom fields. If there is no value in the field, the field will not be returned in the response object at all. As such, all code referencing specific fields should be written with the understanding that the fields sometimes will not be present if empty. This is opposed to returning a null or a blank value—they are omitted from the response.

The response object returned will have two attributes. The first attribute is trackingID, which is always present, even if the lead is unknown. This attribute can be used when passing data to Lead Gen & CRM to establish tracking. The other attribute is the contact object. This object will contain all the known fields about the lead.

In the above example code, resp.trackingID would return the trackingID, resp.contact would return the full contact object, and resp.contact['First Name'] would return the First Name attribute of the contact object.