When no data appears in the reports that you generate, use the following task list to determine the cause and to resolve the problem:
Confirm that the Unity Connection Reports Data Harvester service is running. See the “Confirm Connection Reports Data Harvester Service is Running” section on page 25-1.
Adjust the report data collection cycle. See the “Adjusting Report Data Collection Cycle” section on page 25-2.
Use traces to troubleshoot reports. For detailed instructions on enabling the applicable traces and viewing the trace logs, see the Using Diagnostic Traces for Troubleshooting section.
For information about the available reports and how to generate reports, see the “Using Reports” chapter of the Administration Guide for Cisco Unity Connection Serviceability Release 12.x, available at https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/connection/12x/serv_administration/b_12xcucservag.html.