1. If ArcGIS Pro is not signed in to a named user account when you launch the app, you can select the sign-in link in the top right-hand corner.
2. If you have authorized your ArcGIS Online account with your CAS/SSO credentials you will need to login via the CAS/SSO portal for Claremont*. Chose the "Your ArcGIS Organization's URL" from the login window.
3. You will then have to fill in the first part of the URL domain with "claremont" and click on the "Continue" button.
4. You will then be sent to the portal login screen. Choose "The Claremont Colleges: Central Authentication Service (SSO)."
5. You will then be sent to the Claremont Colleges SSO/CAS (purple) login screen where you can use your usual Claremont credentials.
*If you have an older non-SSO login for ArcGIS you can enter your credentials directly in the box. Email gis@claremont.edu if you need a password reset.