The following endpoints can be used based of your region. 

Preview Environments

Preview US
Base URL: https://preview-rls09.congacloud.com
Auth URL: https://login-rlspreview.congacloud.com
Coreapps URL: https://coreapps-rlspreview.congacloud.com

Preview EU
Base URL: https://rls-preview.congacloud.eu
Auth URL: https://login-preview.congacloud.eu
Coreapps URL: https://coreapps-preview.congacloud.eu

Preview AU
Base URL: https://rls-preview.congacloud.au
Auth URL: https://login-preview.congacloud.au
Coreapps URL: https://coreapps-preview.congacloud.au

Production Environments

Production US
Base URL: https://prod-rls10.congacloud.com
Auth URL: https://login-rls.congacloud.com
Coreapps URL: https://coreapps-rlsprod.congacloud.com

Production EU
Base URL: https://rls.congacloud.eu
Auth URL: https://login.congacloud.eu
Coreapps URL: https://coreapps.congacloud.eu

Production AU
Base URL: https://rls.congacloud.au
Auth URL: https://login.congacloud.au
Coreapps URL: https://coreapps.congacloud.au