"PSA error" and "error 6 in the update" ...VERY IMP!!

Question

Hi All,
I am facing this very strange and critical problem.
Delta load failed due to "PSA error" and "error 6 in the update" for two Infosources.
The Infosource 1 ( Header)- I was able to successfully edit the PSA error and update the delta from the PSA to the ODS....problem solved
The Infosource 2 ( Item ) - The delta for this request is sent to from this Infosource to ODS's .It is allowing me to edit the PSA data and save it. But even after editing and saving, when I am updating the delta to the ODS the request goes red. When I see the reason, I find the same "error in the PSA "and the" Error 6 int he Update". Looks like the edited data is not getting saved.
The error in PSA was ..date was wrongly entered with wrong year in it. So therefore it clashes witht he fiscal yr variant for that infosource.
Tried to do repeat delta for the next delta. Same issue.
__1. No clue why the edited data is not getting saved__
__*2. What is this " error 6 in the Update"*_
In the Status tab of monitor of that request:_
Error message when processing in the Business Warehouse
Diagnosis
An error occurred in the SAP BW when processing the data. The error is documented in an error message.
System response
A caller 01, 02 or equal to or greater than 20 contains an error meesage.
Further analysis:
The error message(s) was (were) sent by:
Update rules
Update rules
Second step in the update
Procedure
Check the error message (pushbutton below the text).
Select the message in the message dialog box, and look at the long text for further information.
Follow the instructions in the message.
Please provide a solution. Very critical and important issue.

Answer 1

I got the same PSA error for another Header Infosource which updates data to one ODS, for which i could edit the data and then update the edited data into the ODS. The changes i have done are saved and had no issue with the infosource. and the load is successful.
But for this Item Infosource ( updates data to two ODS) , i got the same PSA error( Date entered worng) , i was able to edit the data in the PSA and save. but after editing and saving when i update teh request( after editing PSA) the request goes RED ( which means the i get the old values..wrong data).
Why am I not able see the changes i have done when i update the delta from PSA to ODS after editing?....really strange.
Is there any problem in the update rules or something for this Infosource( not sure)..becos i am gettng this "error 6" in the Update.
Please Rescue!