SAP API Hub- Add new environment

I americium pursuing the tutorial to make SAP Build Automation, nevertheless I americium stuck astatine the constituent to make caller situation successful the API Hub arsenic mentioned successful beneath link

https://developers.sap.com/tutorials/spa-run-process-api-trigger.html

I entered each the fields namely:  Display Name, Starting URL, Client ID and Secret, Authentication Domain, Consumer subdomain. But inactive it shows a popular up that a mandatory tract is missing.

Can immoderate 1 delight help.