Hello Mohan,
Maybe this thread can help you:
https://scn.sap.com/message/6068624
Steps 2B compares the old system tcodes and new system tcodes and show the proposal suggested by SAP that you can accept or build your own proposal that is the action expected by you, accept the SAP values or create your own values that fits your current company needs.
Hope this helps.
kind regards,
Letiere