I found this:https://blogs.sap.com/2019/02/10/sap-s4hana-for-customer-management/and this:https://blogs.sap.com/2019/03/25/service-management-in-sap-s4hana-for-customer-management/Some interesting reading there.Paul
Let me do some forum searching for you. These should help.https://answers.sap.com/questions/9757444/using-ie4n.htmlhttps://answers.sap.com/questions/6390158/ie4n-tcode.htmlPaul