SAP offers new tool called Process discovery.
This tool can help you to prepare for an S4HANA conversion.
Then run program RC_VALUE_DISCOVERY_COLL_DATA in productive system with the business scenario recommendation option.
The first option is for the pathfinder tool. You can read more on this option in this blog.
Let the batch job collect the data. Run the program again and use button Download Analysis Data to download the data.
Now you can upload this file to the SAP site. Wait about 5 working days for SAP the process the data.
You can look at a sample report on this link:
And you can see the demo results:
Background on SAP process discovery can be read in this SAP blog.