Introduction
This document describes how to overcome the issue of netflow data which is not displayed for the individual site but for the unassigned devices.
Background Information
If rules are not declared properly at Services > Application Visibility & control > Endpoint Association then you face this issue.
After declaring the same we are able to see traffic classified into corresponding site.
For Netflow data not shown for sites.
http://www.cisco.com/c/en/us/td/docs/net_mgmt/prime/infrastructure/3-0/administrator/guide/PIAdminBook/metrics.html
Procedure
Follow the procedure as shown in the image: