Partner function Creator missing while creating reminder task

Hi All,

In our project we have setup anaction to create task (reminder email) from quotation. We have setup background job of SPPFP transaction to processed quotation so that reminder  transaction(task) can be created.

Issue happening whenever we are creating reminder that is task from SPPFP always 'creator'partner function is missing(not determining). there is no error in case somebody creates it manually. I have created the RFC user as an employee also but the issue still does exists.

Error message detail  : Msg no: 119 class: comm_partner

Thanks

prem