What is CPID means in cj when using a monetizing widget

[jenniferw]

I am trying to install a Monetizing widget from widgetbox, which is a social deal map with customized Commission junction Affiliation url. It ask for CPID of commission junction. I see in my account there is an account number, is that what CPID means? or the website number?
Thanks

 

[onlinemoniez]

 

[Dwight Schrute]