The /blog/ subdirectory of this website needs to be considered like a subdomain. Different people and different project.So, it would be great to considered traffic from this subdirectory as a referral or new source. How can I do that? Now I have 2 properties: one is only the main website, and the other is website+blog in aggregate. Can I do that in the first one?I already deleted my domain from the referral exclusion list, but without success.
How to report traffic from subdirectory as a referral
google analytics;analytics;universal analytics
You would actually have to host your blog on a different domain for Google Analytics to consider traffic from it to be external referrer traffic.  Google Analytics considers all referrer traffic from the same domain name to be internal traffic and does not list it in the acquisition reports.