What is the issue you are facing when trying to access your PowerSchool Account?
It is usually your email address. It is not the username you used to sign in to the PowerSchool SIS portal. The PowerSchool ID is your new Unified Classroom username. It is usually your email address.
If you are having trouble signing in to PowerSchool you will likely need to contact the PowerSchool administrator for your school. They may need to check your account settings or create your account for you.