Track visitors

is it possible to track visitors by a personalised parameter in the url?

e.g. i send some customer this url in my newsletter:
mypage.com?cus=3245543

on mypage.com i configure the site to add the parameter “cus” to all links.
is it possible to track the path, the user took on mypage.com?

kind regards
steph

Currently, only the Live! pluing show visitor path.
But, it show that information for only the few last X visitors.
If you have a lot of visitor per day, you could miss it.

You can have parameters in the URL.
I have a site run by a small php script of my own and in the URL there’s the parameter “page=” and Piwik, unless something has changed in last version, consider them as differents pages.