I am about to setup cross-domain tracking to connect 3 different domains.
Domain #1 - Primary Informational Domain
Domain #2 - eCommerce for the primary domain
Domain #3 - User portal for the primary domain
I am a bit hesitant to implement the cross-domain tracking on the property that tracks the primary domain only at the moment. I want to test things out a bit first plus I will be setting up a lot of eCommerce tracking. Basically, I do not want to mess with the good data in the current property.
Would it make sense to keep tracking the primary domain separately and setup another property for cross-domain tracking? Also, am I going to be dealing with any issues because I am running 2 tracking codes for the primary domain?