Diagnosis

RFC destination is missing
From the R/3 System, you want to carry out a procedure in the R/2System. This takes place internally via the Remote Function Call (RFC)interface. The system requires an R/2 target system (destination) to dothis.

RFC system error
occurs if the receiver system crashes.
An RFC communication error
occurs if a problem occurred when a link was being set up or whencommunication was taking place.

Procedure
If CATT wants to execute a procedure remotely in an R/2 or R/3 system,it must specify a valid RFC destination address. Destinations arenormally taken from the SPA/GPA parameters which can be set user-specifically. They can also be passed in parameters at CAT_START.