Hi Dipak,
This batch job basically re-processes BOPF actions that failed earlier because of locked documents.
The job performs well if the database table /SCMTMS/D_TRIGHD doesn't contain any entries after an execution of the job at a point in time when you don't have locked documents.
For more details, please have a look on consulting note 1747234.
For even more details you might want to listen to episode 24 of the SAP TM podcast at TMP024: The Trigger Concept | tmp
Regards, Thomas