get confirmation R/3 of a SRM PO

Hello

I'm working with SRM 3.0. We can confirm PO's in SRM or R/3 system. When PO is confirmed in SRM system, i can retrieve it using BBP_PD_CONF_GETLIST. But when Po is confirmed in R/3 system, i don't know how to get confirmation. Is there any function module to get all confirmations of a PO including R/3 confirmation.

Thank your for your help.