Thank you, srola! I guess I have to contact the development team and the analytics team to implement the tags.

Thank you for your comments both of you. I am just a marketing/client service person who has very little knowledge of analytics and tagging. Does the "Referrer overwrite" have to be done in the ad server side, back-end of the website, or analytics? Our team has an access to the ad-server but the web...

Our company placed display banner ads to online publications.  We served the ads using Google Campaign Manager and provided the tags for the publishers to implement the tags to their site.  When I checked the Analytics, almost 96% of the traffic from banner ads were from referral, specifically s0.2m...