Inconsistent data in PSA table and Data source

Dear Experts,
I am using Process chain to update info cube from data source of a z table. In the process chain, the Delete PSA request step is having the PSA table number of the correct data source. The info package and the DTP also have the correct data source.
But after executing the process chain, the PSA table is updated with the wrong data source.
I have checked the Extraction of the data source in RSA3 transaction. The records are matching to the correct data source. But when I check PSA contents through process monitor in process chain log for DTP, I found the PSA content data is inconsistent and getting the data from wrong data source.
If process chain is repeated once again, the PSA is updated with the right data source.
Also when I do the process chain steps manually, it is working well.
Thanks and regards
Murugesan

Hi,
Looks strange but you can do the following check,
Go to your data source and from the PSA table check which infopackage is loading data. You should be able to see that data is getting loaded from same infopackage. If there are multiple infopackages involved means you could get different data.
Regards,
Durgehs.

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Need to get a list of PSA tables and change log tables existing in a PC

Is there a standars table to look up all active DSOs and the change log tables associated to those DSOs?
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Check RSTSODS table with filter of User App CHANGELOG ---> For change log tables

Data in PSA content is different than the data source

Dear Experts,
I am using Process chain to update info cube from data source of a z table. In the process chain, the PSA request request step is having the PSA table number of the correct data source. The info package and the DTP also have the correct data source.
But after executing the process chain, the info cube is not updated with the required data source. It is updated with data from some other data source which is belonging to a different custom table.
I have checked the Extraction of the data source in RSA3. This is extracting from correct data source. But when I check PSA contents through process monitor in process chain log for DTP, I found the PSA content data is different from the data source.
I am totally confused, how this is possible. Can anybody advise me to troubleshoot and fix this issue.
Thanks and regards
Murugesan

Dear Igor,
The PSA request is being deleted in a previous step prior to loading the info package. I can see every time when I run the process chain, the old request number is deleted and a new request number is created.
Still the same issue is persisting.
I also observed one more thing that the second time when we repeat the same process chain, the correct data source data is loaded in the info cube and PSA table. Only during the first time, the PSA table and Info cube it is not updating with the right data.
thanks and regards
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I'm having trouble with creating PSA tables in SAP BW. Can somebody please explain the different ways to create PSA tables.
Thank You Very Much
My Regards...

Hi..
After it is extracted from source systems, data is transferred to the entry layer the data
warehouse, the persistent staging area (PSA). In this layer, data is stored in the same form as
in the source system. The way in which data is transferred from here to the next layerincorporates quality-assuring measures and the transformations and clean up required for a
uniform, integrated view of the data.
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Using partitioning, you can separate the dataset of a PSA table into several smaller, physically independent, and redundancy-free units. This separation can mean improved performance when you update data from the PSA.
In the Implementation Guide with SAP
NetWeaver → Business Intelligence → Connections to Other Systems → Maintain Control
Parameters for Data Transfer you define the number of data records needed to create a new
partition. Only data records from a complete request are stored in a partition. The specified value is a threshold value.
The number of fields is limited to a maximum of 255 when using TRFCs to transfer data. The length of the data record is limited to 1962 bytes when you use TRFCs.
PSA Table
For PSA tables, you access the database storage parameter maintenance by choosing Goto → Technical Attributes in DataSource maintenance. In dataflow 3.x, you access this setting in transfer rule maintenance in the Extras menu.
You can also assign storage parameters for a PSA table already in the system. However, this has no effect on the existing table. If the system generates a new PSA version (a new PSA table) due to changes to the DataSource, this is created in the data area for the current storage parameters.
Define PSA Part. size using transaction RSCUSTV6
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PSA
RSTSODS Directory of all PSA Tables
with regards,
hari kv
Message was edited by:
hari k

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I have been trying to delete the data from the PSA tables using the process type Deletion of Request from PSA and the Object type PSA TABLE.
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Shalabh

Hi Raghavendra,
The table is present in the system (SE11/SE16) and contains data as well.
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CS

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What is the relation between DataSource and PSA.

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Hi,
For a DSO I want to delete data from "Chnage log table" and " PSA Tabel".
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I am not sure what are you referring to from your point "PSA Level Mange screen also I have seen " Environment-> " Delete changelog table". When ever you click on manage for your psa you will be routed to a popup where you can see all your requests in the PSA table & there after if you click on any single request you will get Environment menu option but there wotn be any change log deletion option available. Please check again? Right clicking on your data source will take you to the manage requests for PSA. You can selectively delete the requests as required.
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Please refer the below doc at SDN, it will be helpful for you in automating the process of change log deletion & PSA deletion.
http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/a02ba9e7-bb6f-2c10-09b4-e86b9fcbad41?QuickLink=index&overridelayout=true
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Inconsistent data in PSA table and Data source

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