CALL_FUNCTION_REMOTE_ERROR
highRFC Call Failed — Remote System Communication Error
Module: RFC / Basis
What this means
CALL_FUNCTION_REMOTE_ERROR is raised when an RFC call to a remote system fails at the communication or system level — not due to an application error inside the called function module, but because the RFC framework itself could not complete the call. Causes include: the destination system is down or unreachable; the RFC destination in SM59 is misconfigured or has the wrong logon credentials; the SAP Gateway (SMGW) has dropped the connection; a network firewall is blocking port 3300 (or the configured gateway port); the target work process has crashed; or the called function module raised an unhandled exception that was not declared in the function module interface.
Check the RFC destination in SM59 and run the Connection Test and Authorization Test. Verify the target system is running and the dispatcher is accepting connections. Review SMGW for gateway errors. Check SM21 on both source and target systems for logon or communication errors. If using qRFC or tRFC, check SMQS/SMQ2 for stuck entries. Confirm the function module exists in the target system with the correct interface signature.
Quick Info