&lt;!-- Load Facebook SDK for JavaScript --&gt;
&lt;div id=&quot;fb-root&quot;&gt;&lt;/div&gt;
&lt;script&gt;(function(d, s, id) {
  var js, fjs = d.getElementsByTagName(s)[0];
  if (d.getElementById(id)) return;
  js = d.createElement(s); js.id = id;
  js.src = 'https://connect.facebook.net/en_US/sdk/xfbml.customerchat.js#xfbml=1&amp;version=v2.12&amp;autoLogAppEvents=1';
  fjs.parentNode.insertBefore(js, fjs);
}(document, 'script', 'facebook-jssdk'));&lt;/script&gt;

&lt;!-- Your customer chat code --&gt;
&lt;div class=&quot;fb-customerchat&quot;
  attribution=setup_tool
  page_id=&quot;943107619158367&quot;
  logged_in_greeting=&quot;How can we help you sir ?&quot;
  logged_out_greeting=&quot;How can we help you sir ?&quot;&gt;
&lt;/div&gt;