After WebUI / WCC is configured with SSO (NTLM / Siteminder), regular operations seem to work but running any command via ECLI tab gives an error from AutoSys Web Server:
CAUAJM_W_70263 Empty osPassword parameter specified
StatusCode: 400, URL: https://AutoSys-Web-Server.example.com:9443/AEWS
AutoSys Workload Automation
The way ECLI works is by capturing the user credential (during the login process, from the Login page) and is saved as the Default credential in WebUI's credential tab.
Because Single Sign-On (SSO) is being used to login to WCC, during the sign in process, there is no password that can be captured to be saved as the Default credential above. That's why the error is generated.