Note: As of July 9, 2018, Blackbaud's School Management solutions (which include Core, onBoard, onCampus, onMessage, and onRecord) are utilizing a new top level navigation. This primarily affects users performing administrative tasks-constituent navigation for most parents, students, faculty, and alumni will remain the same. We appreciate your patience as we work to update our documentation. If you are seeing this message, the content of this solution is still being vetted for possible updates. Please refer to this mapping document if you need assistance finding a task in the new navigation.
One of the reasons TBA is displaying on a teacher's schedule is because your school has both onCampus Attendance and onRecord Attendance installed.
To fix this, you will need to contact your Software Consultant to see if your school is in mid-year implementation. If not, contact your Account Executive to find out why both are installed.