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.
If you're manually assigning a username to a user's record, and after entering the new username, you're unable to save, the most common cause is that the user name you're adding is already in use. Try entering a different, unique username and see if this saves. If so, this confirms the username you were attempting to add is being used by another user in the system.
You can create a list of usernames, and filter for the specific username you're trying to add, to see which user already has this username assigned.
Click here for steps on how to create a list of usernames.