This Intercom installation script dynamically captures query string parameters and enables you to map them into CDAs. Please follow the INSTRUCTIONS section in the comments, then please remove comments and set your APP_ID before using. This should be installed the same as the standard Intercom installation, like so: https://developers.intercom.c…

dynamicQueryStringIntercom.js

<script>
/* 
INSTRUCTIONS

To begin syncing these parameters with SFDC you will need to excplitly reference 
them as qualification attributes in your Intercom Qualification Data settings in the Intercom UI:
https://www.intercom.com/help/faqs-and-troubleshooting/capture-qualify-and-convert-leads/what-is-qualification-data

Then, you will need to map those qualification attributes to your SFDC lead fields in the Intercom UI.
See the "Map and sync your qualification attributes" section of this document:
https://www.intercom.com/help/apps-in-intercom/apps/salesforce-app
*/

//Set your APP_ID
var APP_ID = "** YOUR APP ID **";

//Our function that gets the parameters
var getParameterByName = function() {
    var result = {};
    var params = (window.location.search.split('?')[1] || '').split('&');
    for (var param in params) {
        if (params.hasOwnProperty(param)) {
            paramParts = params[param].split('=');
            //Decode the query string value for easy use in the UI
            result[paramParts[0]] = decodeURIComponent(paramParts[1] || "");
        }
    }
    return result;
}

//Get the parameters
var params = getParameterByName();

//Instantiate our window.intercomSettings object
window.intercomSettings = {
    app_id: APP_ID
};

//Now, if we have parameters, let's dynamically map them to window.intercomSettings
if (!!params && typeof params == "object") {
    Object.keys(params).map(function(key) {
        //Validate the values
        if (!!key && key != "" && !!params[key] && params[key] != "") {
            try {
                var value = params[key];
                window.intercomSettings[key] = value;
            } catch (e) {}
        }
    });
}

//Then the standard Intercom instantiation script
(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>