Can anybody help to identify where we can find the process hierarchy for the modules PS, PPM or CPM under the On-Premise in the SAP Best Practices Explorer path SAP Best Practices Explorer?
I am not able to find any scope items which is relevant for these modules. The scope items listed in this site are Finance, HR, Sourcing and Procurement, Manufacturing, R&D Engineering, Supply Chain, Asset Management, Sales, Service. SAP EPPM is only available under R&D Engineering but then it does not have the module areas covered.
The Best Practices for PS have not been updated for S/4HANA.
You will need to reference the older Best Practices for the documentation only, which can be found here:
SAP Note 2705882 - Retired SAP Best Practices / BAiO Packages
Start with the EC&O one.