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LSMW [Batch Input , Direct input, BAPI, IDOC ]

can any one give the details of LSMW – Step by Step details. The Legacy System Migration Workbench is an R/3 Based tool for data transfer from legacy to R/3 for one time or periodic transfer.[Batch Input , Direct input, BAPI, IDOC ]

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  • author's profile photo Former Member
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    Posted on May 25, 2007 at 11:29 AM
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  • author's profile photo Former Member
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    Posted on May 25, 2007 at 11:23 AM

    Hi

    BDC is the way to transfer data by writing a batch input program which can use either session or call transaction method.

    LSMW used to transfer data without/less code.

    What type of data we transfer using LSMW?

    LSMW is best suited for transferring master data.

    Actually BDC and LSMW are not comparable at all.

    for example LSMW itself can use BDC as a way of mass data transfer.

    BDC is a mass data transfer technique via screen logic of existing SAP Data entry transactions. It behaves as if you are manually making thousand of entires into sap system as a background job. And that is probably the reason why BAPI's are preffered over BDC's.

    On the other hand LSMW is a tool to facilitate DATA migration from other legacy systems ... It contains step by step procedure for data migration.

    Like Managing Data Migration Projects , Creating Source Structures , Mapping Source structures wid Target structures , etc etc

    LSMW internally might well be using the following techniqes for data transfer..

    1. IDOX

    2. Direct Input / BDC

    4. BAPI's

    LSMW is an encapsulated data transfer tool. It can provide the same functionality as BDC infact much more but when coming to techinical perspective most the parameters are encapulated. To listout some of the differences :

    LSMW is basicaly designed for a fuctional consultant who do not do much coding but need to explore the fuctionality while BDC is designed for a technical consultant.

    LSMW offers different techinque for migrating data: Direct input ,BAPI,Idoc,Batch input recording. While bdc basically uses recording.

    LSMW mapping is done by SAP while in BDC we have to do it explicitly .

    LSMW is basically for standard SAP application while bdc basically for customized application.

    Coding can be done flexibly in BDC when compared to LSMW

    1. Maintain Attributes:

    Here you have to choose the second option and you can do the recording how this should work. Then assign the same to the Batch Input Recording name.

    2. Maintain Source structure:

    Create a structure name

    3. Maintain Source field:

    In this you have to create a structure same as that of the input file

    eg: name

    age

    sex

    4. Maintain structure relations:

    This will link the structure to the input file.

    5. Maintain field mapping and conversion rules:

    Here is the place where you can do coding, depending upon the code you have written or assignment you have done the values will get picked up from the file and get processed.

    6. Maintain field mapping and conversion rules:

    If you have any fixed values you can define here.

    7. Specify files:

    Specify the input file path and type.

    8. Assign files:

    This will assign ur file to the Input file

    9. Read Data:

    This will read ur data from teh file.

    10. Dispaly Read Data:

    You can see the uploaded data

    11. Convert Data

    This will convert the data to the corresponding format for processing

    12. Display Converted data:

    13. Create batch input session

    Here this will create a batch input session for processing

    14. Run Batch Input session:

    By clicking on the session and process the same you can do teh needfu.

    http://www.sapbrain.com/TOOLS/LSMW/SAP_LSMW_steps_introduction.html

    http://esnips.com/doc/8e732760-5548-44cc-a0bb-5982c9424f17/lsmw_sp.ppt

    http://esnips.com/doc/f55fef40-fb82-4e89-9000-88316699c323/Data-Transfer-Using-LSMW.zip

    http://esnips.com/doc/1cd73c19-4263-42a4-9d6f-ac5487b0ebcb/LSMW-with-Idocs.ppt

    http://esnips.com/doc/ef04c89f-f3a2-473c-beee-6db5bb3dbb0e/LSMW-with-BAPI.ppt

    http://esnips.com/doc/7582d072-6663-4388-803b-4b2b94d7f85e/LSMW.pdf

    for Long texts Upload

    Please take a look at this..

    http://help.sap.com/saphelp_erp2005/helpdata/en/e1/c6d30210e6cf4eac7b054a73f8fb1d/frameset.htm

    Reward points if useful

    Regards

    Anji

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  • author's profile photo Former Member
    Former Member
    Posted on May 25, 2007 at 11:20 AM
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  • author's profile photo Former Member
    Former Member
    Posted on May 25, 2007 at 11:22 AM

    Hi,

    1. Maintain Attributes:

    Here you have to choose the second option and you can do the recording how this should work. Then assign the same to the Batch Input Recording name.

    2. Maintain Source structure:

    Create a structure name

    3. Maintain Source field:

    In this you have to create a structure same as taht of the input file

    eg: name

    age

    sex

    4. Maintain structure relations:

    This will link the structure to the input file.

    5. Maintain field mapping and conversion rules:

    Here is the place where you can do coding, depending upon the code you have written or assignment you have done the values will get picked up from the file and get processed.

    6. Maintain field mapping and conversion rules:

    If you have any fixed values you can define here.

    7. Specify files:

    Specify the input file path and type.

    8. Assign files:

    This will assign ur file to the Input file

    9. Read Data:

    This will read ur data from teh file.

    10. Dispaly Read Data:

    You can see the uploaded data

    11. Convert Data

    This will convert the data to the corresponding format for processing

    12. Display Converted data:

    13. Create batch input session

    Here this will create a batch input session for processing

    14. Run Batch Input session:

    By clicking on the session and process the same you can do teh needfu.

    Refer the Below links ..

    http://www.sapbrain.com/TOOLS/LSMW/SAP_LSMW_steps_introduction.html

    /people/hema.rao/blog/2006/09/14/lsmw--step-by-step

    /message/2398727#2398727 [original link is broken]

    http://help.sap.com/bp_blv1500/BL_US/documentation/LSMW_EN_US.doc

    Hope this helps you.

    Thanks,

    Reward If helpful.

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  • author's profile photo Former Member
    Former Member
    Posted on May 20, 2008 at 09:05 PM
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  • author's profile photo Former Member
    Former Member
    Posted on May 21, 2008 at 04:41 AM

    hi,

    The LSM Workbench is an SAP R/3 based tool that supports the one-time or periodic transfer of data from non-SAP systems ("legacy systems") to SAP systems.

    check the following links step by step along with screen shots:

    LSMW to Update Customer Master Records with Standard Object

    Batch input method:

    http://www.saptechnical.com/Tutorials/LSMW/StdObject/StdObject.htm

    Direct input method :

    Uploading Material master data using Direct input method

    http://www.saptechnical.com/Tutorials/LSMW/MMDIM/page1.htm

    Idoc method:

    Uploading Purchase Info records using IDOC Method

    http://www.saptechnical.com/Tutorials/LSMW/PurInfo/page1.htm

    BAPI:

    Uploading Material Master data using BAPI method in LSMW

    http://www.saptechnical.com/Tutorials/LSMW/MMBAPI/Page1.htm

    pls reward if helpful.

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