A system for managing critical student information is disclosed generally comprising storing information associated with individual students, such as important medical information or contact information for the student's parent or guardian, and providing different authorized users, such as school administrators, teachers, or coaches, permission to access the information and/or send messages for particular students. The stored information for each student is associated with one or more group identifiers, which identify particular groups of which the student is a member, such as a school or team, and each authorized user is likewise associated with one or more group identifiers, which identify the particular groups for which the user has access and can send messages.