Accessing ClientID set by Google Analytics through Google Tag Manager

Question

I have setup a new Universal Analytics tracking and would like to store ClientID in one of the custom dimensions slots.

The tracki

Answer 1

The real problem is that GTM (Google Tag Manager) creates an object that is NOT called ga (it creates an object named ga followed by a random number), that's why 'ga' is not defined. You should try something on the lines of using the tag manager to put that client id into a javascript variable so you can access it from the page)