Your username is your student ID or a variation of it. See the table below.
|System ||Username format||Services|
|CampusNet||000123456||Course content (assignments, quizzes, etc.)|
|Self-Service||000123456||Course registration, Transcripts, Final Grades|
|Microsoft 365 Onlinefirstname.lastname@example.org||Student Email, Office Online, OneDrive file storage, etc.|
If you need to reset or change your password, please see this article.