The GradeBook network or server administrator can track user session information as well as changes made to assignment marks and report card grades in GradeBook. GradeBook audits this information in different ways. The user session information is recorded in the Audit.UserSession table in the District database and cannot be disabled. Assignment marks and report card grades that have been inserted, changed, or deleted are recorded in the PBAudit log, which displays in the Microsoft Event Viewer. The PBAudit log can be enabled and disabled for individual district databases at any time.