The document discusses different types of reference and transactional support data that can be created and modified in Unicenter Service Desk. This includes reference data to accurately reflect business structures, configuration item records to store equipment information in the configuration management database, and various ticket record types used to classify, prioritize, and track the status of incidents, problems, requests, changes and issues. It also provides instructions on accessing the appropriate areas within the Unicenter Service Desk application to view and manage this configuration and ticket support data.