Is there any Function Module to delete the Responsibility for buyer

Hi,

I am able to insert a responsibility for a buyer using the FM, BBP_UPDATE_ATTRIBUTES. Can any one can tell me is there any FM to delete the responsibity for buyer. The BBP_UPDATE_ATTRIBUTES is not working for deletion and It is taking lot of time when i am trying to delete rsponsibility by using the transactio code PPOSA_BBP .

I found one badi, HRBAS00INFTY but there are no exporting or changing parameters in that badi to write some logic to delete.

The FM ,RH_BASE_UPDATE_DB_DIALOG is getting executed and updating the data base tables after the above badi got executed. can i use this FM ,RH_BASE_UPDATE_DB_DIALOG directly to delete the responsibility?I think it is not recomended.

can any one give me some idea.