How To Fix RT045 - RFC Problem: &1&2 (Function module: &3, RFC destination: &4)

SAP Error Message - Details

• Message type: E = Error

• Message class: RT - Monitoring infrastructure MSG and alert texts

• Message number: 045

• Message text: RFC Problem: &1&2 (Function module: &3, RFC destination: &4)

What causes this issue?

A remote function call (RFC) that was made by the monitoring
architecture was unsuccessful. The method shows the cause of the
problem (as reported by RFC) as well as the RFC function module that was
to be run and the RFC destination at which it was to be run.
The RFC problem is probably caused either by a communication problem
(the destination could not be reached) or by an execution problem in the
function module.

System Response

The RFC call could not be completed. The problem has most likely only
minor consequences for your use of the alert monitor and monitoring
architecture. Some monitoring functionality may not be available, but
the alert monitor and most of the display should still be available for
use.

How to fix this error?

If the reported error suggests a communication problem (system not
reached, timeout, and similar causes), then test the RFC destination in
transaction SM59. If the test is unsuccessful, check that the
definition of the destination is correct, that the destination
server/system is running and is connected to the respective message
handler, that no network problem has occurred, and that the gateway
processes in both the calling system and the destination are running.
If the reported error suggests a runtime problem (an exception in the
function module that was to run), then see if the problem is temporary
or was caused by a configuration error (no authorization, for example).
You can probably correct such problems yourself. Please report hard
program errors, such as syntax errors, to the responsible programmer or
to SAP.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RT045 - RFC Problem: &1&2 (Function module: &3, RFC destination: &4) ?

  The SAP error message RT045 indicates an RFC (Remote Function Call) problem. This error typically arises when there is an issue with the communication between SAP systems or between an SAP system and an external system. The message provides specific details about the function module and the RFC destination involved in the error.
  Cause of RT045 RFC Problem
  
  Network Issues: There may be network connectivity problems between the SAP systems or between the SAP system and the external system.
  RFC Destination Configuration: The RFC destination may not be configured correctly in the SAP system. This includes incorrect settings for the target system's IP address, port, or connection type.
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations to execute the function module.
  Function Module Issues: The function module specified in the error may not exist, may be inactive, or may have been changed in a way that it