Transfering Data to SAP

Question

Hi Guys,
I've been aksed this question and need to know how would you answer it.
How do you transfer data to SAP using trans LSMW.

Answer 1

The LSM Workbench is a tool that supports data transfer from   non-SAP systems to R/3. The main functions of the LSM Workbench are:
      - Import data (legacy data in spreadsheet tables and/or    sequential files)
      - Convert data (from source format to target format)
      - Import data (into the database of the R/3 application)
Pre requisites of LSMW -
Make sure that SAP customizing is finished.
Run the relevant transaction in the SAP system manually with test data from the legacy system and see which fields must be filled. There may be required fields that do not correspond to data fields in the legacy system. In such a case, one should better assign a fixed value or establish an optional field for data transfer.
Map the fields in advance in written form: Assign the source fields to the target fields.
Determine the form in which non-SAP data will be transferred into the SAP system (e.g. via "Move" or according to a rule).
Import Methods -
IDOC's
BAPI's
Standard/Direct input
Batch Input
Steps -
Enter the transaction code (LSMW) or add this transaction to your favourites (right-click with your mouse on the Favourites map in the start menu and choose Insert transaction, type lsmw and press enter), since LSMW is an additional transaction, it is not available in the standard SAP menu.
At the initial screen, you can create a new project, corresponding subprojects and objects via Edit -> Create new entry. Alternatively you can select from an existing project
Project: An ID with a maximum of 10 characters to name your data      transfer project. If you want to transfer data from several legacy systems, you may create a project e.g. for every legacy system
Subproject: An ID with a maximum of 10 characters that is used as further structuring attribute
Object: An ID with a maximum of 10 characters to name the business object
- At the initial screen, ‘All Objects’ provides a list of all projects   created already.
     -  ‘My Objects’ displays a list of all objects you created personally
     - ‘All Project Objects’ displays all objects of the selected project as tree structure.
     - ‘Project Documentation’ displays any documentation written for the individual pop-ups and processing steps. You can print the project documentation out, send it and save it in various file formats.
     -  Select  ‘Documentation’ to enter your notes. After clicking, a popup is displayed in which you can write down your personal documentation.
Regards,
Reward if useful.