How to edit copa data source or change delta method.Need t-code/procedure

Question

Hi gurus,
I have a copa extractor in production.The copa extraction is costing based.
I need to get an extra field from CE1**** table. when i go to KEB0 and display , i see my required field under the chracteristics from segment table. It is unchecked.
I want to know the transaction where i can go and  edit the datasource to check that field and bring that data in.
I tried going to T-code KEDV. But i couldnt figure out what to do there?
I also tried deleting and recreating the datasource, then i am able to check that field. The problem is earlier existing data source used to say,
Delta Method     Time Stamp Management in Profitability Analysis
now it says
Delta Method         Generic Delta.
how do i change the delta method from generic delta to Time Stamp Management in Profitbility Analysis. During creation in KEB0 it doesnt give any option to change.
and what exactly is the differnce between both delta methods?
plz post your inputs.
Thanks in advance,
> Points will be assigned for inputs
Message was edited by:
        ravi a
Message was edited by:
        ravi a

Answer 1

Hi Ravi,
I would expect you are communicating to your users that you will need some downtime for you to change this.  To add characteristics to COPA you actually have to first the delete the datasource in KEB0 then re-create the datasource.  I would work with your CO-PA config team to get the T-Codes necessary to assign those objects to PA.
Please reference OSS note 392635 for further reference on your CO-PA timestamp question.  This should answer your questions here.
Pls. assign pts if this helps.
Thanks,
-Alex