Hi Ramesh
Generally this request is used for field level people means (Customer Lean Request) .
From Customers site also he can use for creation of Customer simply providing minimun data in it (General data of Customer Like Address, Bank details) alone with Organizanal name ( One Company code and One sales Area without any details) by Mobile app or tab app with SAP Fiori. After sumbition it came to Master Data Steward so that He can populate all required fields along with relevant fields and then send for approval of Master Data Spealist.