workflow in PP

Hi Friends,

i have done workflow for PP, but i need the to trigger work flow for a specific plant only and for specific production order type only. i.e for each plant and order type work flow have to delivered for specific persons ( different persons incharge)

i want to do workflow for process order, how to do. please give me the business object for process order. BUS2005 is the object for production order , so what is the object for process order.

Regards,

Kumar