These days many people use both Google Analytics tracking code as well as ClickDimensions tracking code. We use it too.
If you are using latest version of google analytics i.e. "universal analytics tracking code" and "clickdimensions tracking code", In this particular case your Google Analytics will not work. That is happen due to a conflict in clickdimensions tracking code.
The Google states in their article that their ga variable might conflict with other objects, and we have found that it does. They suggested workaround, described below, that is very simple to implement to prevent this conflict.
function ga(c, ga, la)
It means that ClickDimensions Tracking Script has won the race, and Universal Analytics Tracking Script might not function.
If you see:
function N(ar, g, Yd, d)
It means that Google Universal Analytics governs the global function, and ClickDimensions might not work.
It seems like there are only two workarounds: remove ClickDimensions or rename the global function name that Universal Analytics uses: