Google Adsense ID

Can some body tell me where exactly I can find this ID ??

At first I thought it was my adsense pub ID, but then I read “Enter your Google Adsense ID assigned by Google Analytics in this box. This enables Analytics tracking of Adsense information if your Adsense and Analytics accounts are linked”

I looked around Google Analytics for the Adsense ID, but the support doesn’t make it very clear where this ID can be found.

The plug in itself doesn’t help either. I can punch anything into that box, save it, and it will save with no errors…. So I have no idea if I can typing in the correct Adsense ID or not.

It would be helpful if the plug in tells me the ID I entered is invalid so I know to keep trying different ones, but it doesn’t..

So can someone out there who knows what’s up please tell me where exactly I can find the Google Adsense ID assigned to me by Google Analytics ?

Thank you in advance !

http://ww.wp.xz.cn/extend/plugins/google-analyticator/