To resolve the issue of users being unable to create Knowledge articles when closing a case after migrating to Lightning Experience, adding the 'Manage Salesforce Knowledge' permission to the user's profile is necessary. This permission enables users to create, edit, and publish Knowledge articles, ensuring that they can contribute to the Knowledge base directly from case records, enhancing the support process.

To continue improving support KPIs after implementing Knowledge-Centered Support (KCS), utilizing the Search Activity Gaps dashboard component is recommended. This tool helps identify topics for which customers are searching but not finding satisfactory answers, guiding CK's efforts in creating new or updating existing articles to address these gaps and further enhance customer satisfaction and support efficiency.

The Service Cloud Consultant Study Guide - Service Cloud Solution Design domain recommends using Case Teams to facilitate collaboration on cases among different departments. Case Teams allow multiple users or roles to work together on a single case, improving visibility and coordination between service and product development teams.
To meet the requirement of alerting the product development team on high-priority cases, the best practice is to use Salesforce Flow (or Process Automation tools) to automatically send notifications, create tasks, or post updates to collaboration tools such as Slack or Chatter when criteria are met (for example, "Priority = High" and "Product = X").
Escalation Rules are designed for time-based escalation to higher support tiers, not for notifying specific departments. Account Teams facilitate collaboration at the account level, not on specific cases, making them unsuitable for case-specific alerts.
Referenced Salesforce Materials:
Service Cloud Consultant Exam Guide - Service Cloud Solution Design Domain (collaboration and automation design considerations).
Salesforce Help: "Set Up Case Teams" (enables collaboration among different users on cases).
Salesforce Help: "Build Automated Notifications with Flow" (describes how to notify users when case conditions are met).

To address the issue of agents forgetting to update the Case Status after sending an email, creating a Case Macro that automates the process of sending the email and updating the status is recommended. This ensures consistency in case management and adherence to support processes, enhancing service quality and managerial oversight.

Omni-Supervisor provides built-in visibility into skills-based routing queues, agent workloads, and backlog distribution across all skills. Managers can monitor real-time metrics such as agent availability, assigned work, and queued cases per skill, and can reassign agents dynamically to balance workloads.
This capability fulfills UC's requirement for visibility and control within skills-based routing.
Option A is too limited, focusing on technical configuration rather than providing real-time monitoring.
Option C (custom report type) only offers static reporting, not live visibility or reallocation functionality.
Referenced Salesforce Materials:
Service Cloud Consultant Exam Guide - Interaction Channels Domain (Omni-Channel and Supervisor functions).
Salesforce Help: "Monitor Skills-Based Routing in Omni-Supervisor".
Salesforce Winter '23 Release Notes - Omni-Channel Skills and Supervisor Enhancements.