The Legacy System Migration Workbench (LSMW) is a technical tool provided by SAP® to assist with the data migrations during initial implementations. It is also used by some SAP customers to make changes to master data in SAP en masse.
Winshuttle transactionSHUTTLE™ software presents a non-technical alternative for updating master records in far fewer steps than LSMW; without technical resource involvement.
Using transactionSHUTTLE, hundreds of SAP customers are realizing vast productivity improvements in their SAP data loading and data update projects. Moreover, these projects are being carried out by business users themselves.
To learn more, read
An Easy Alternative to LSMW to Update Customer Master Records in SAP in the
Winshuttle White Paper Library. 
