Reg: displaying workflow log based on BO and BO key

Hi All,

      I am using the transaction SWI6 to display the workflow log based on the BO and BO key, but it is giving a message " there are no workflows that have worked with this object type". i have created a subtype and delegated to standard BO BUS2031 and triggred the workflow using the event raise of classs 'CL_SWF_EVT_EVENT' were i am passing the object key.

       i can see the event trace in SWEL.

       i can see the log in SWI1 so any one can help  were have i gone wrong?

Thanks & Regards,

Narayan