No business object triggering for Process Order

Hi experts ,

When i am creating a process order in transaction  COR1 , there is no business object getting triggered in the SWEL .

Note: Event trace is on .

So please tell me is there any SPRO settings needs to be done for the same .

Is there any SAP Notes to be implemented for the same .

If any body knows about this problem then please give me some guidance .

Thanks,

Naresh.K