What steps can I take?
Contact your district administrator for help with SSO. District administrator requiring SSO assistance should contact HMH Technical Support.
Visit Alternative Login Options to learn about logging in without SSO
This option below will only be available for a very limited time. You must ask your district administrator to upgrade your SSO connection immediately.
For District Administrators: Instructions on how to upgrade SSO
If a new SSO connection has already been set up, IT administrators may need to publish the updated SSO endpoints to client machines to avoid this error.