Document posting 'created by' field is updated with Wf-Batch

Hello friends,

Please spend few mins of your valuable time.

I am facing an issue in workflow for FB01, System is upgraded from 4.7 to ECC6.0.

Using FB01 the document is posted throgh workflow, the issue is.. the record 'created by' field is updated with wf-Batch but for the same workflow in 4.7 it is updated with userid of creater.

I analyzed in both 4.7 and ECC6.0 the posting step is background/syncronus in both and i also gone though forum but i did not get solution.

I also tried to change background to dilog step as sugested in some of forums did not work.

Why it's behaving differently for same workflow in 4.7 and ECC6.0? do i need to do any configaration for workflow settings? or any sap note?

Please help me.

Thanks in advance.