Scroll down to Other Account Actions on the right hand side and click Learning Management System (LMS) setup. (If you don't see this option it means your current subscription does not include our LTI integration. Please contact our sales team for package options.)
Update these settings:
Platform ID: Issuer from the Schoolbox Instance Details
Client ID: Client/Deployment ID from the Schoobox Instance Details
Deployment ID:Client/Deployment ID from the Schoolbox Instance Details
Authentication request URL/endpoint:OpenID Connect Authentication URL from the Schoolbox Instance Details
Access Token URL/endpoint:oAuth Access Token URL from the Schoolbox Instance Details
Public Keyset URL/endpoint:JSON Web key Set URL from the Schoolbox Instance Details