Delta load and PSA Reversal Indicator

Background:
After delta loading BW from R/3 Billing I noticed there were more records in the PSA than R/3 billing items. I found that some records had 3 duplicate records. The first was the orginal document from R/3. The second was the same with negative key figures and a reversal indicator. The third is the same record as the first. R/3 has only one record for these three.
Question:
1. Why was this record reversed in BW when there is no reversal in R/3?
2. Will the first occurance of this record post to the ODS load with the unique records option on?
Thanks for any quick answers!
New BW Analyst - Alan

Hi dear and welcome on board !
What you are seeing in PSA is the normal behaviour of Logistic Cockpit datasources...
In this way, thanks to BW, you can analyze all the history for every single billing item (that, clearly, in R/3 will continue to have only one record in VBRP, with all latest and updated info).
In other words R/3 reversal overwrited the unique record in VBRP, while BW stores this change !
About your second question, you don't have to flag in ODS the "unique records" option, since, clearly, you will receive a lot of records for the same key !!!
Hope now is clearer...
Bye,
Roberto
...and please don't forget to reward the answers...it's THE way to say thanks here !!!

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Two Issues.
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or
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The reason you are getting the same no. of records is as you said (Full load), after running the delta you got all the changed records but after those two delta's again you have a full load step which will pick whole of the data all over again.
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Edited by: Vaibhave Sharma on Sep 3, 2008 10:28 PM

Delta Load and Full load

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https://forums.sdn.sap.com/click.jspa?searchID=10026965&messageID=4743634
1. After converting from Info Package to DTP I will still load the delta from Data Source to PSA, but the data source need to migrated to 2004s. WIll it cause any issues in loading delta data?.
NO
2. The DSO to further targets are using delta info package, I believe I change the info package to DTP with load mode selected as DELTA. Is this correct?
YES
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Delta load and PSA Reversal Indicator

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