Currently BlackBaud has it setup where teachers can only modify attendance within the same day. After that, it's the Attendance Manager's responsibility. I get far too many email requesting edits. According to BlackBaud the only way to grant teachers access to change attendance anytime is to add the attendance manager roll to their profile. I think this is a bit extreme. There should be an option in the "Attendance Setup" tab to allow teachers access to make changes anytime.