Question on adding a ZZ field available in VBAK to the DS 2LIS_11_VAHDR

Question

I need to include a new ZZ field available in VBAK table to the DataSources 2LIS_11_VAHDR
The Extract Structure for the DataSource is MC11VA0HDR.
Now in the DataSource 2LIS_11_VAHDR there are two includes - "[MC11VA1HDR] Extraction SD Sales BW: Document Header MCVBAK" and "[MC11VA2HDR] Extraction SD Sales BW: Document Header MCVBUK"
For Extract Structure MC11VA1HDR, there is an Append Structure "[ZZMC11VAIHDR] Append for MC11VA1HDR"
My questions are,
1. If I now need to make this new field in VBAK available in 2LIS_11_VAHDR, where shall I make the change - Shall I modify the structure MC11VA1HDR directly or append the structure to include this field?
2. Since this field is already available in the VBAK table, do I still need to write code to retrieve this data?
3. What are the implications for the setup table & the existing data? Do I need to reconstruct the Setup tables?

Answer 1

Hi Anjuit,
         here's how you do it (in BW7):
Go to LBWE on the source system
Find the 2LIS_11_VAHDR extract structure. It is under '11: SD Sales BW'
In the source system, go to RSA7 and check the delta queue for the DataSource. If there is stuff stuck in it then you will need to empty the queue. The easiest way to do this is to pull the data across to BW by running a DELTA infopackage against the InfoSource.
You will also need to delete any data that has been left lying around in the restructure tables after the last initialisation of the DataSource. Use transaction LBWG to do this. If you donu2019t do this, the system wonu2019t let you change the DataSource.
*Now go in and u2018Maintainu2019 the Extract Structure. Add the new fields you need from the OLTP source table.
When this is successful, go back to the LO Customising Cockpit. The extract structure will be red. Click on the DataSource associated with the extract structure. All the new fields should be in there, but they will have been created as u2018Hiddenu2019 and u2018Not relevantu2019. You will need to unhide these fields and make sure the Service API passes these fields to the extractor.
Save the changes to the DataSource.This will take you back to the cockpit again. Now the extract structure should be yellow. Click on the u2018Inactiveu2019 text to activate the Extract Structure & DataSource.
Finally, you have to build a restructure table for the data. You have to go into SBIW->Settings for Application-Specific DataSources->Logistics->Managing Extract Structures->Initialization->Filling in the Setup Table->Applicatio-Specific Setup of Statistical Data.
Do the restructure in simulation mode first, and check the log in NPRT. If all is well, run it for real.
Test the extraction in RSA3 to make sure that everything has worked OK.