Select the application, find the Single sign-on option from the left navigation menu
Click on edit button and update the Identifier and reply_url with value provided by admin ( Identifier & ACS ) respectively.
Edit the sign on url with https://learning.appsecengineer.com
After doing the setup, your config will look like below, now need to communicate back either the Federation Metadata XML file or the App Federation Metadata Url with the ASE Admin
After metadata url/file has been communicated, admin will confirm once the setup is complete & enabled for the account.