Case Resolution Time is a critical KPI for understanding support center costs. It measures the average time taken to resolve customer cases, directly impacting labor costs and resource allocation. By monitoring and optimizing Case Resolution Time, executive management can identify efficiency improvements, manage staffing requirements more effectively, and ultimately reduce the cost of operating the customer support center.

To standardize service KPIs for users at all levels while ensuring data visibility is based on user access, setting the dashboard running user as 'Dashboard Viewer' is recommended. This approach dynamically calculates KPIs using only the data accessible to the individual viewing the dashboard, ensuring consistency and data security across the organization.

Comprehensive and Detailed Explanation:
To reduce the volume of email notifications sent to support agents when case ownership changes, administrators can modify the Support Settings in Salesforce.
From the official Salesforce Help documentation:
"Select Cases. Select Support Settings. Deselect the Notify Case Owners when Case Ownership Changes checkbox to disable email notifications."
-Salesforce Help
By unchecking this setting, Salesforce will no longer automatically send email notifications to agents upon changes in case ownership, thereby reducing email clutter and allowing agents to focus on more critical communications.

To understand the disparity in customer satisfaction reports, measuring cases with and without Knowledge articles attached, and correlating them with high Customer Satisfaction (CSAT) scores can provide insights.
This KPI could reveal whether the use of Knowledge articles directly impacts customer satisfaction, helping to explain the inconsistency between KPIs and customer testimonials.

To enable contact center managers to monitor messaging sessions and provide guidance to service agents, configuring the Omni-Channel Supervisor feature along with Whisper Messages is recommended. This setup allows managers to oversee agent-customer interactions in real-time and offer discreet advice to agents during messaging sessions, ensuring professionalism and accuracy in responses.