title: Facebook Ad Conversion tracking - fb_param.value
body: <p>I am looking for some advice on installation of the Facebook Ad Conversion tracking that Facebook provide, but strangely, don't provide any documentation for.</p>
  
  <p>Understandibly the code is basic and <em>almost</em> self-explanatory, but the line of code <code>fb_param.value = '0.00';</code> says nothing about what the value should be. Considering it is tracking a conversion I would have imagined it should be the monetary value of the conversion (Order Total, for example) but every snippet of code I see copy-pasta'd around the net has this value as <code>0.00</code>.</p>
  
  <p>Is this correct? or should I be feeding through the conversion value?</p>
  
  <pre><code>&lt;script type="text/javascript"&gt;
  var fb_param = {};
  fb_param.pixel_id = '6006337211872';
  fb_param.value = '0.00';
  (function(){
    var fpw = document.createElement('script');
    fpw.async = true;
    fpw.src = '//connect.facebook.net/en_US/fp.js';
    var ref = document.getElementsByTagName('script')[0];
    ref.parentNode.insertBefore(fpw, ref);
  })();
  &lt;/script&gt;
  &lt;noscript&gt;&lt;img height="1" width="1" alt="" style="display:none" src="https://www.facebook.com/offsite_event.php?id=6006337211872&amp;amp;value=0" /&gt;&lt;/noscript&gt;
  </code></pre>