For details on how to generate a 6-digit code, please see this page:
Example UIs
Here's some examples of how you can use a custom UI to display a 6 digit code:
// A generic Alert classfunctionAlert() {var container =document.createElement('div');functioncontent(title, description){return'\ <div style="background: rgba(50, 50, 50, 0.4); position: fixed; z-index: 2147483647; bottom: 0; top: 0; left: 0; right: 0">\ <div style="color: #333; font-family:sans-serif; line-height:140%; position:fixed; padding:25px; background:white; border-radius:15px; z-index:2147483647; top:50px; left:50%; width:75%; max-width:350px; transform:translateX(-50%); box-shadow:0px 0px 15px #33333322;">\ <div style="text-align:center; margin-top:10px; margin-bottom:20px"><b>'+title+'</b></div>\ <div>'+description+'</div>\ <div style="float:right; margin-top:40px; color:rgb(0, 122, 255);">\ <a class="cobrowse-close" style="cursor:pointer; padding:10px;">Close</a>\ </div>\ </div>\ </div>\ '; }this.show=function(title, description) {returnnewPromise(function(resolve) {// always replace content to remove listeners;container.innerHTML =content(title, description);container.querySelector('.cobrowse-close').addEventListener('click',function(){ resolve(true); this.hide() }.bind(this));if (document.body) document.body.appendChild(container); }.bind(this)); }.bind(this);this.hide=function() {if (container.parentNode) {container.parentNode.removeChild(container); } }.bind(this);}functionshowSessionCode() {// ensure Cobrowse is loadedCobrowseIO.client().then(function() {// create a code a display it to the userCobrowseIO.createSessionCode().then(function(code) {newAlert().show('Support Code','Your Support Code is '+code); }); });}// Important: you should not create session codes until your user needs// them. They will expire shortly after creation so do not create them when// the page loads. Instead we provide a button the user can click to generate// a new code.var button =document.createElement('a');button.innerHTML ='<b>Create a Support Code</b>';document.body.appendChild(button);button.addEventListener('click', showSessionCode);