When an external app creates a SAP business object by calling GetSAPObject - is the instance created in SAP as well (in memory)? Or does the instance exist only in the external application as a proxy handle but no real SAP object instance behind it? I read somewhere that SAP creates a communication link between the proxy and SAP(BOR)..what is the link if the object instance does not really exist in SAP? Also, after completing an instance dependent BAPI method ...should the external program do something to free the object instance in SAP if it has created one?