Hello Tim,
Initially you get option to choose either of PI or HCI which you will be using for your integration. Select appropriate option which you will using as middleware. Logical System used should be created in ERP with the Logical System ID same as your C4C short tenant ID. Check out the below link, report name is different in this but steps are similar:
How to Configure Integration between SAP ERP and SAP Cloud... [page 92/101] | howtomanuals.net
Regards,
Chandan