To tracking information accross multiple, related sites as a single session you'll need to set up cross-domain tracking. To ensure this tracking plays nice with ApexChat, use the following instructions:
ga('create', 'UA-12345678-9', 'auto');
ga('send', 'pageview');
ga('create', 'UA-12345678-9', 'auto', { 'allowLinker': true });
ga('require', 'linker');
ga('linker:autoLink', [‘sellwithchat.com’, ‘www.sellwithchat.com’]);
ga('send', 'pageview');
The highlighted portion above should have the domain of the chat window.
The highlighted portion above should have the domain of the chat window.