Enhancement of 2LIS_02_ITM Datasource

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Hi Experts,
Could you please update me with the procedure (detail) that I have to followu2026
Currently I am loading (LO COCKPIT) Purchase Order information using the Data source 2LIS_02_ITM (Delta) to BW.
The Load is deltau2026
Now as per my requirement the 2LIS_02_ITM data source is enhanced in R/3 to include custom fields..
Now my requirement is to include this new enhanced data source with out intrepeting daily Deltasu2026
Please update me with the details procedure that I need to follow
Thanks in advance
Edited by: Siegfried Szameitat on Dec 9, 2008 2:24 PM

Hi
The procedure would be:
Firstly the datasource enhancement should be done in your development system then transported throughout the BW system landscape
1.Know the table name as well as the technical name of those fields(se16 or se16n)
2.Add those fields as ZZ... on the datasource then write relevent code in trans CMOD to populate those fields and the transaction for enhancement is RSA6,replicate and make sure that the timestamp of source and target are the same.Include those newly added fields on the BW dataflow all the way until your reporting object either cube or ODS
3.Test thoroughly in RSA3 making sure that your fields are populated correctly
4.As for data volume,if the business requires history possibly you will have to initialise the deltas and if not then the fields will get populated from the date of transportation to prod system
Take congnisance because with the above mentioned datasource,if messed up you will have to run setup tables which will require source system locking or blocking
Thanks
Herbert Naape

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https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/biw/a-c/customer%20enhancements%20and%20userexits%20in%20bw%20-%20sap%20netweaver%20%20know-how%20network%20webinar.pdf
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Refer to the SAP Note 692195 for more info ......
send ur mailid, mail u some good step by step- doc abt this.
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