Shopping cart(SRM) -RMS Document creation

Hi Folks,

I am working on the SAP SRM - RMS integration scenario, where in when the user is creating a Shopping cart->ordered->approved/rejected, an RMS document is created in the back-end.

My scenario is to suspend the document creation(RMS) when ever the shopping cart is Rejected. The standard SRM- RMS integration standard behavior is like  when ever the SC is Approved/Rejected a new RMS document is created in backend. Please share the technicaldetails(Class,FM,BAPI etc)

Could someone throw a light.

Note: It is on high priority.

Thanks,

Sujay V