Account Activation
Activation guidance for teachers, school administrators, and students.
Before teachers and students can use their accounts, the School Administrator must first complete the school activation procedure. Users will see "Account Not Found" upon login until their profile or class has been activated by the School Administrator in the School Admin Portal.
From the 2026–27 academic year, all new accounts for teachers and students use HKEdCity EdConnect SSO to log in to Lambda Math.
Activation Procedure
Follow the 4-step pathway below to complete school onboarding and activate accounts for teachers and students:
Activation Support
For Teachers
If you see "Account Not Found" upon login or cannot access classes, please contact your School Administrator to verify that the school has completed the annual EdData authorization, and that your account is marked as active in the School Admin Portal and assigned to your classes or groups.
For Students
If you see "Account Not Found" upon login, it indicates that your school has not yet assigned your class for the current academic year. Please notify your Mathematics Teacher or Class Teacher; once activated in the School Admin Portal, you can log in directly using your school credentials.
Still Need Assistance?
If you still need assistance with login or activation, contact our school support team at support@lambda-math.com.