Error occurred in Data selection

Question

Hi All,
We have a delta load step for 0FIGL_O02 in one of our Process chains.This step failed with an error message-
Error message from the source system
Diagnosis
An error occurred in the source system.
System Response
Caller 09 contains an error message.
On getting into monitor , the Status tab says" Error occurred in Data Selection".
Message text is :
Delta request REQU_D5XVIKL0GSIIZAWDIOB9HIOOQ is incorrect in the monitor
A repeat needs to be requested
Data target 0FIGL_O02 still includes delta request REQU_D5XVIKL0GSIIZAWDIOB9HIOOQ
If the repeat is now loaded, then after the load
there could be duplicate data in the data targets
Request the repeat?
Please advise.
Thanks,
Shweta

Answer 1

Hi
Repeat delta is only available in case of transaction Data source.
For transaction datasource system stores two fields
1. Last delta
2. Repeat Delta.
In case we set request status not ok and save the status, BW System udpates the repeat delta field and thus for next data extraction system marks the request diff. as repeat delta and starts from Repeat delta field value instead of Last delta.
In case of normal delta request from BW system takes Last delta fields into consideration.
Hope the below link will be clear in getting
/people/aaron.wang3/blog/2007/04/11/repair-bad-data-and-subsequent-data-targets-with-delta-update
Many thanks
Kiran