Property sets instead of cross-domain tracking?
I'm working on a site for a customer. They have a tour booking system delivered by a third party, residing on a separate server. I'm interested in capturing sales statistics in GA, and was thinking that cross-domain tracking would be the solution.
Re: Property sets instead of cross-domain tracking?
I would suggest collecting all the data to a single property as this will allow full channel attribution and content performance measurement ability.
In that case cross domain tracking would be needed.