Data Reconciliation ... trouble shooting

Question

Hi All Experts,
Can anyone provide me some assistance on the following plus provide me some solution.
a)Data validation btw r/3 and bw reports
b)if not possible then use se16 - but need to explain how to determine the table and the fields to be used
check if the definitions are similar between reports
check to see if there are any exclusions in the report and the data inconsistency is caused by master data loads (unassigned etc)
c)timing of the data loads - are there postings since the data is loaded into bw?
d)if the reportt definitions are the same between r/3 and bw - check the data in the cube.  use listcube - explain how to use listcube.
e)determine if the error is caused by a particular package or error in update rule / transfer rule - explain how to determine this (include the package id, possible errors - full load, delta load)
include pointers on how to fix the error - asking a bw consultant to fix the error is a good idea in this case.  they should not be fixing the error themselves (unless its a query issue)
Also ... data reconciliation and how to fix the errors and suggest corrections, improvements and fixes wherever possible.
TQ
BR
Kumar

Answer 1

a) Data validation between R/3 and BW reports can be done by getting the reports from the R/3 consultant or if u know how to get that u can do that urself. And checking them with the reports in BW ( the selections shd be the same ).
b)use se16 . For this u have to know from which tables the data is coming into BW . For example take the case or Material Master . The data comes into this Master data from the table MARA.
for this goto to the SE16 of R/3 and check the data from this table . similarly all other datasources.
c)u can check this in the delta queue of the source system.
d)Listcube is a transaction in the BW where u can check the data .
u get a screen with selections and fill the entries by defult if there are too many selection fields the system will not allow u so u have deselect all the characteristics and select few which are important or those for which u want to check the data.
e)Determining if the error is caused by paricular package or any other thing , u can find this int he RSMO transaction and select the load which failed and in the details tab u find all the information .
To see if it is caused in the update rules or TR's u have to simulate the update and switch on debugging and check the update rules and u can find out.
Data reconcilation is nothing but ur first question and how to fix the errors u will have to get the error to be fixed so if u hae any error just post the error in the forum and u will be helped by ur friends here.
Hope this helps
Regards
Majeed