Hi Bighnajit,
Can you run the EA26 batch job for the affected CA only and see if the SD bill gets picked or not?
If not, then check the job log as to see why its not picking the SD bill.
If you are not able to find anything, then go to T.code -SLG_ISU.
Give the Mass activity type as INVO and Give the date ID and Identification for the EA26 batch run and execute.
You will be able to analyse the log and found the reason for the SD bill not getting picked.
Hope it helps...
Thanks,
Amlan