Answer / jo arakkal

LSMW - Legacy System Migration Workbench , it is used
extensively during the implementation time for uploading
the legacy data to SAP system like master datas customer
master record,vendor master,g/l master etc.inorder to start
running LSMW we have certain prerequisites to be defined.
LSMW will be used predominentely by Functional consultants.

BDC - Batch Data Communication ) is used for uploading
mass data into SAP system. In SAP system BDC also referred
to batch input or data tranfer.Typical Uses
Typical uses of batch input include the one-time import of
data from a legacy system into a newly installed R/3
System. Another typical use is for periodic transfers of
data from external systems or legacy systems that are still
in use into SAP.

BAPI - BAPI (Business Application Programming Interface) is
a set of interfaces to object-oriented programming methods
that enable a programmer to integrate third-party software
into the proprietary R/3 product from SAP. For specific
business tasks such as uploading transactional data, BAPIs
are implemented and stored in the R/3 system as remote
function call (RFC) modules.

Answer / venkat

LSMW is used by the function people(like FICO,MM,PP,SD).
LSMW is used to upload the MASTER DATA & SOME TRANSCRIPTIONAL
DATA

BDC& BAPI is used by the technical persons(Like ABAP)

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