Edit code on your site to utilize first-party cookies.
After you have verified your hostname(s) are responding and forwarding to Adobe data collection servers, you can alter your implementation to point to your own data collection hostnames.
To update implementation code
If you want to update the code only pertinent to first-party cookies, locate the s.trackingServer and s.trackingServerSecure (if using SSL) variables, and point them to your new data collection hostnames. Using mysite.com as an example:
s.trackingServer = "metrics.mysite.com"
s.trackingServerSecure = "smetrics.mysite.com"
If you are moving to first-party cookies from a long-standing implementation, or changing to a different first-party collection hostname, we recommend migrating visitors from the previous domain to the new domain.
See Visitor Migration in the Analytics Implementation Guide.