1. What is the LSM Workbench?

Ans. The LSMW (Legacy System Migration Workbench) is a tool based on SAP software that supports single or periodic data transfer from non-SAP to SAP systems (and with restriction from SAP to SAP system).

2. What are all the methods does LSMW supports?

Ans. LSMW supports the following 1. Batch input method.2. Batch input recording method.3. BAPI.4. IDOC.

3. Which data can be migrated using the LSMW?

Ans. By means of standard transfer programs: a wide range of master data (e.g. G/L accounts, customer master, vendor master, material master, bills of material) and transaction data (e.g. financial documents, sales orders).

4. Is the imported data consistent?

Ans. Yes. The data is loaded via the standard interfaces of the applications. This will include all checks that are run for online transactions. Invalid data will be rejected.

5. Which is the step common to all four methods?

Ans. Maintain Object Attributes.

6. What are all 14 steps in LSMW Batch input recording?

Ans. 1. Maintain Object Attributes 2. Maintain Source Structures 3. Maintain Source Fields 4. Maintain Structure Relations 5. Maintain Field Mapping and Conversion Rules 6. Maintain Fixed Values, Translations, User-Defined Routines 7. Specify Files 8. Assign Files 9. Read Data 10. Display Read Data

11. Convert Data 12. Display Converted Data 13. Create Batch Input Session 14. Run Batch Input Session

6. What is the function of Maintain Object Attributes step?

Ans. This step allow user to select the method for data transferring.

7. What is the function of Maintain Source Structures step?

Ans. In this step we declare internal table to hold data.

8. What is the function of Maintain Source Fields step?

Ans. In this step we assign the fields to internal table.

9. What is the function of Maintain Structure Relations?

Ans. In this step system can assign internal table fields to fields searched by recording.

10. What is the function of Maintain Field Mapping and Conversion Rules?

Ans. In this step field mapping is done.

11. What is the function of Specify Files?

Ans. This step we specify the file path and the file name to be uploaded into sap system.

12. What is the function of assign files?

Ans. This step assign text file into internal table. This is equivalent to calling GUI_UPLOAD in BDC.

13. What is the function of Import data?

Ans. This step can upload data to internal table.

14. What is the function of Display Import data?

Ans. This step can maintain loop end loop on internal table for displaying data from internal table.

15. What is the function of Convert data?

Ans. This step can execute mapping logic on internal table data i.e. validations are done in this step.

16. What is the function of Display Converted data?

Ans. This step can display records for which validations are completed.

17. What is the function of Create Batch input session?

Ans. This step can create group name in SM35.

18. What is the function of Run Batch input session?

Ans. This step move control to SM35 and executes to process data into database tables.

19. Do we have to migrate table by table?

Ans. No. Business objects such as material master, customer master, or FI document are migrated.

20. For which SAP releases is the LSMW available?

Ans. There is an LSMW available for all SAP releases. However, it is important to make sure to use the correct LSMW version. Newer SAP system releases (as of SAP Web AS 6.20) come with an 'integrated' LSMW. Thus, there is no need to install an LSMW as add-on because it is already available in the system.

21. Can we transfer data that is on our PC?

Ans. Yes. The LSMW can read the data directly from our PC. Only when using the periodic interface, the data has to be on a server accessible by the SAP system.

Q22. What is the Transaction code to work with LSMW?

Ans. LSMW.

Q23. Do LSMW supports call transaction method?

Ans. No.

Q24. Explain the complete process of data migration using LSMW?

Ans. The following are the steps involved in LSMW.

1. TCode: LSMW.

2. Enter Project name, sub project name and object name. Execute.

3. Maintain object attributes. Execute select Batch Input recording goto->Recording overview create recording name. enter transaction code. start recording do recording as per ur choice. Save + back. enter recording name in lsmw screen. save + back

Now there will be 14 steps. 2. MAINTAIN SOURCE STRUCTURES. Here you have to enter the name of internal table. Display change create save + back

3. MAINTAIN SOURCE FIELDS. Display change select structure source fields->copy fields. a dialogue window will come .

Select -> from data file apply source fields enter No. of fields length of fields attach file save + back

4. MAINTAIN STRUCTURE RELATIONS display change save + back

5. MAINTAN FIELD MAPPING & CONVERSION RULE display change click on source field, select exact field from structure and enter repeat these steps for all fields. Save+back

6. MAINTAIN FIXED VALUES, TRANSACTION, USER DEFINED execute save + back

7. SPECIFY FILES. Display change click on legacy data attach flat file give description select tabulatore enter save + back

8. ASSIGN FILE execute display change save + back

9. IMPORT DATA. execute display change save + back

10. DISPLAY IMPORTED DATA enter ok, it will show records only. back

11. CONVERT DATA execute display change save + back

12. DISPLAY CONVERTED DATA execute display change save + back

13. CREATE BATCH INPUT SESSION tick keep batch input folder F8 back

14. RUN BATCH INPUT SESSION. SM35 will come Object name will be shown here select object & process