Reconciliation to verify data in R/3 and BW

Question

Hi Experts,
Can any one explain me how we will maintain reconciliation to verify the data in SAP R/3 and SAP BW are same or not after the data loads. Please explain all the sources that we have.
Thanks in advance
Mallik

Answer 1

For Unit Test, you don't need to reconcile all the records. So, I take a couple of selections. Using these, go to RSA3 in R/3 and extract the data and take sub-totals in Excel.
Now, go to Info Provider in BW, and using same selections, download the data in BW or BEx and take sub-totals again and compare both.
If the extractor is generic extractor based on View/Tables, you can go one additional step and get data from SE16 in R/3 to make sure RSA3 and Tables also match.
For Business Content extractor, its a little difficult is do this step because most of them are Function Modules.
This should be enough as long as your selections are good.
You can compare the data from RSA3. Run RSA3 and save the data in a file and then compare with BW.
You can compare the PSA data with R/3 to check whether your data transport is correct.But it’s very much important the end result (with data in Data Targets ex.Infocube...) should be reconciled with the R/3 data to check your update and transfer rules are working fine.
The second part is too tricky since you cannot directly compare the reports while the formats and grouping are different.
You can execute the reports in R/3 and apply the Update and transfer conversions (at least for random records) then reconcile with the BW data.
Take a look on the note: 543188
"How to Reconcile Data Between SAP Source Systems and SAP NetWeaver BI"
The Data Reconciliation procedure is still in the SAP action item for the future release.
But we can reconcile the data by extracting the reports and compare with the query output in Excel sheet.
Please check for a tool "Excel Compare" in google which is really useful in comparing excel files.
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/7a5ee147-0501-0010-0a9d-f7abcba36b14
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/biw/how%20to%20validate%20infocube%20data%20by%20comparing%20it%20with%20psa%20data
By this method you can compare your infocube data with PSA ones...clearly, every changes in R/3 (due to user exit or, above all, BW-specific standard logic) is not taken into account...if you want to consider also this part (back-end), there is no std method and it depends from every specific flow!
also check in service.sap.com/bi
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/7a5ee147-0501-0010-0a9d-f7abcba36b14
One way is to define Remote Cube on the R3 data source and create multiprovider on BW with the Remote Cube and the BW target. Subtract the KF on R3 from the KF in BW - anything not 0 becomes an exception.
Sometimes the source on R3 is not as straight forward and we have had ABAP developers create summary table on R3 to compare to BW.
Actually one to one Data comparison between R/3 and BW is done during Integration Test phase. During this time we need to sit with R/3 team and work closely because they know exactly the numbers in R/3 side and which tables Data resides and all. After loading Data same data in to BW we compare the numbers between R/3 BW. If both the teams feel there is some data missing then we start the analysis. As a first stem we will see in the extractor’s then BW side during transformation like transfer and update rules.
Pleases see this document for more help
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/968dab90-0201-0010-c093-9d2a326969f1
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/biw/how%20to%20validate%20infocube%20data%20by%20comparing%20it%20with%20psa%20data
verifying the data which is coming from R/3 to BW system. That is called as Reconciliation.
That process is done with “ v lookup “functionality.
Hope this helps and assihn points, if so
Regards
Raja