This function assists you in intergrating intercom to your wordpress page.

functions.php

/*
*@author nevilpaul..
*@mail: info@netdevelops.com
*@date published:12/07/2018
*/
<?php
// copy the code from here in the function.php file and disable the intercom plugin replace 'APP-ID' with the actual id of your app
global $wp;
function intercom_script_footer(){ 
  if ( is_user_logged_in() ) { 
    $current_user = wp_get_current_user(); ?>

<script>
   /* Show intercom widget */
    window.intercomSettings = {
    app_id: 'APP_ID',
    email: '<?php echo $current_user->user_email; ?>',
    user_id: '<?php echo $current_user->ID; ?>', 
    name: '<?php echo $current_user->display_name; ?>',
    created_at: <?php echo strtotime(get_userdata($current_user->ID)->user_registered); ?>
};

<?php } else { ?>
<script>
//********* remove this script code if you want only intercom to be visible to user*************************
   /* Show intercom widget */
    window.intercomSettings = {
    app_id: 'APP_ID'
};
//************************** end of remove *****************************************************************
<?php } ?>

/*Show intercom widget */
   (function(){var w=window;var ic=w.Intercom;if(typeof ic==="function")    {ic('reattach_activator');ic('update',intercomSettings);}else{var    d=document;var i=function(){i.c(arguments)};i.q=[];i.c=function(args)   {i.q.push(args)};w.Intercom=i;function l(){var   s=d.createElement('script');s.type='text/javascript';s.async=true;s.src='https://widget.intercom.io/widget/APP_ID';var x=d.getElementsByTagName('script')   [0];x.parentNode.insertBefore(s,x);}if(w.attachEvent)   {w.attachEvent('onload',l);}else{w.addEventListener('load',l,false);}}})()
</script>

<?php }
/*script included when user is logged in*/
function is_page_to_include(){
	intercom_script_footer();
};

// To add intercom to the front end of your wordpress site:
add_action('wp_footer', 'is_page_to_include'); 
//To add intercom to the admin area of your wordpress site:
add_action( 'admin_enqueue_scripts', 'is_page_to_include' );
?>