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Former Member

diff between CATT and LSMW

can any one explain the difference between CATT AND LSMW.

In which business senarieo catt is used

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  • Best Answer
    author's profile photo Former Member
    Former Member
    Posted on Jan 21, 2008 at 08:22 AM

    Dear lachhi,

    SAP users use CATT frequently to upload master data or to make changes to master data records. SAP Consultants and Abapers tend to use it for creating test data. The transactions run without user interaction. You can check system messages and test database changes. All tests are logged. The CATT records your keystrokes while performing the actual transaction. You then identify the fields that

    you wish to change in that view. Then export this data to a spreadsheet to populate with the data required. This is uploaded and executed saving you keying in the data manually.

    To perform CATT, it has to be enabled in your production environment (your systems administrator should be able to do this - SCC4). You will also need access to your development system to create the CATT script.

    The process of uploading data with a CATT:

    Activate CATT in your client

    In transaction code SCC4 - click the change button

    Double click on the client number

    In the Restriction section, tick Allows CATT processes to be started.

    Upload data using CATT

    1. Create Import variant for the fields you need

    Transaction SCAT

    Goto Parameters

    Create Import Variant

    Goto Variant -> Edit

    Goto Variant -> Fast entry or F9

    Duplicate 01

    2. To change the MRP Group for a list of Material

    Assuming that I want to change the MRP Group for a list of Material.

    My text files should look something like this:

    [Variant ID] [Variant Text] &ZDISGR &ZMATNR

    --> Parameter texts MRP group Material

    --> Default Values M1 A001

    • Changes to the default values displayed above not effective

    #01 M1 A001

    #02 '' A002

    #03 M1 A003

    Note : '' denotes a blank in the field. e.g. Material A002

    MRP group will be replaced by a blank.

    3. Configure the recorded entry fields to read from the imported text file data

    In the CATT : Maintain functions test case Screen

    Double click on the Object Name

    Double click on the screen number with your desired fields

    Park the cursor on the fields

    Click Edit -> Details

    Fill in the Parameters Name and Field Contents

    Finish Save it.

    Assign your text file data.

    In the CATT : Execute test case Screen

    Click External from file and choose your text file CATT will now read from your text file and update whatever data you have specified.

    LSMW is legay system migration work bench is basiclly used

    for migrating data from legacy system to SAP system.

    Where as CATT is computer adided testing tool used for

    tesing but now days it is used for migartion manily by the

    functional consultants

    Do let me know in case of any queries.

    Hope this helps you.

    Do award points if you found them useful.

    Regards,

    Rakesh

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  • author's profile photo Former Member
    Former Member
    Posted on Jan 21, 2008 at 06:32 AM

    CATT stands 4 Computer Aided Testing Tool

    Although CATT is meant for as a testing tools, many SAP users have now use CATT frequently to upload vendors master data and make changes to other master record.

    SAP Consultant and Abapers tends to used it for creating test data.

    Below find some scenarios for the use of CATT:

    1. Create multiple sales orders (excess of 200) in a matter of minutes for the purpose of end user training

    2. Create multiple purchase ordes (excess of 200) in a matter of minutes for the purpose of end user training

    3. Create Deliveries for the sales orders in a matter of minutes for the purpose of end user training

    4. Create config. entires, if the volume of records is large. I remember once I entered 900 records.

    5. Extensively used in preparing the transactional data for the purpose of archiving. It worked impeccably.

    6. Loading of master data (example: material groups)

    LSMW:

    It is a standard tool provided by SAP to upload the master datas like customer and material masters.

    Here u need to map the fields and run the recordings & import the external file to SAP.

    Reward points if it is useful.

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  • author's profile photo Former Member
    Former Member
    Posted on Jan 21, 2008 at 06:33 AM

    During software implementation, data transfer and the set-up of periodic/permanent interfaces is one of the most costly and time-intensive tasks. Several market studies have shown that, on average, these issues account for 20% of implementation costs. In individual cases it can be many times that amount.

    To unleash the full potential of the SAP solution and to drastically reduce the substantial need for individual programming to convert data, SAP offers tools like Legacy System Migration (LSM) Workbench & CATT (Computer Aided Test Tool).

    Regards,

    Rajesh Banka

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  • author's profile photo Former Member
    Former Member
    Posted on Jan 21, 2008 at 08:02 AM

    Hai lachhi

    CATT is used as testing tool as well as to upload the data in SAP Systems.

    LSMW is known as Legacy System Migration Workbench. It is also tool provided by sap to transfer data from non sap systems to SAP systems

    Regards

    Pradeep Belur

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  • author's profile photo Former Member
    Former Member
    Posted on Jan 21, 2008 at 01:59 PM

    hai gurus

    thanks for quick replay

    but i want to know,when we have lsmw for data migration then why do we use catt for uploading data to sa system.

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