Hi Kiran,
the SAP EWM RF Framework is a powerful tool:
There is a cookbook available from SAP EWM development Team how to adapt/enhance the RF Transactions - you can find it in the SAP Service Marketplace or directly via this link:
https://websmp205.sap-ag.de/~sapidb/011000358700000705532008E/RF_Cookbook_101117.pdf
Best regards,
Matthias