Prepare for Single Sign-On (SSO) > Troubleshooting
  
Troubleshooting
Error When Logging In to the Experience Service from Vuforia Studio
Issue
Solution
When trying to log in to the Experience Service from Vuforia Studio, an error displays instead of the log in page. The error message reports an HTTP 400 Bad Request status and invalid redirect_uri error code.
If your Experience Service is running on the protocol's default port (port 80 for HTTP and port 443 for HTTPS) then remove the port from the <es-base-url> parameter that is used to construct the <studio-redirect-uri>. Reconfigure the Vuforia Studio client in PingFederate to use the revised version of the <studio-redirect-uri>.