EZP – Different Campaigns on Different Sites with Integration Code

Question:

I am wondering how it is possible to have different campaigns on different Domains. How does that works?

Example: Campaign 1 for Domain 1
Campaign 2 for Domain 2
Yes I have added Domain to setting, but I just got one code:

var EZP = {“user_id”:”2071059141″};

How do I get the right campaign to the right Domain???