Tx RB,
SAPBATCH is a background user.This report is used to process the idoc RBDAPP01.
There are two things here i.e. processing of idoc and the lock of the object.From the screen shot its clear that object is locked by SAPBATCH and the processing of idocs also happens through SAPBACTH. Hence ST03N will not be of much help.
I want to know the exact report executed by SAPBATCH which was holding the object.There are several reports running for SAPBATCH.
Sabya