SAP ABAP Programming Made Easy - Theory & FAQs

7. What Is Data Migration & What Is The Significance Of Data Migration. State The Most Important Data Migration Tools Available In SAP? Data Migration stands for data transfer between two like or alike systems. During SAP R/3 implementation the data needs to be moved from legacy system to the SAP system. Sometimes periodic data transfer between R/3 and other system (interfacing) is also required. Both of the above form a part of data migration. Significance of data migration are: Data migration comes in the end of R/3 implementation. To start with Data Migration first configuration should be fully completed Data migration is about 20% to 40% of the total implementation expenses. The tools for data migration are:- BDC (Batch Data Communication) LSMW (Legacy System Migration Workbench) 8. What Are The Main Functions Of LSMW? The 3 main functions of the LSMW are: Reading the legacy data from one or several files (e.g. spreadsheet tables, sequential files). C...

1. What Is LSMW All About? LSMW is a tool provided by SAP in order to upload huge amount of data from legacy file to R/3 system. The Legacy System Migration Workbench (LSMW) is a tool to transfer data from legacy systems (Non SAP System) into an R/3 System (SAP System). LSMW supports a step-by-step procedure; if one step is executed and saved then next step automatically follows. Apart from creation of project/ subproject/ object and recording, there are 14 basic steps included in LSMW. Through LSMW one can create Master data, create transactional data, modify existing master data etc. This tool is very useful when some mass changes are to be carried out and no standard SAP transactions are available for that. There are few standard objects available in LSMW e.g. material master, vendor master, customer master, purchasing info record, purchase requisitions, purchase orders etc. Using these standard objects one can do mass data upload and mass transactions. A part from thi...