How To Fix 1R555 - System error in RFC call of function module &1

1R555 - Overview

• Message type: E = Error

• Message class: 1R - SAP Knowledge Provider

• Message number: 555

• Message text: System error in RFC call of function module &1

What causes this issue?

Calling function module &V1& by remote function call (RFC) triggered
the exception SYSTEM_FAILURE. This happens if the recipient system has
crashed (that is, the target system of the call).

System Response

The function module was not executed.

How to fix this error?

Repeat the operation that led to this error (after waiting a certain
period of time, of necessary). If the error reoccurs, inform system
administration.

Procedure for System Administrators

Check the availability of the target systm of the RFC call. If this
messsage is in the application log, you may find more entries on RFC
destinations and relevant operating system error messages.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 1R555 - System error in RFC call of function module &1 ?

  The SAP error message 1R555 indicates a system error that occurred during a Remote Function Call (RFC) to a function module. This error can arise due to various reasons, and understanding the cause and potential solutions is essential for troubleshooting.
  Possible Causes:
  
  Network Issues: Problems with the network connection between the SAP systems can lead to RFC call failures.
  System Configuration: Incorrect configuration of the RFC destination or the function module itself can cause this error.
  Authorization Issues: The user executing the RFC call may not have the necessary authorizations to access the function module.
  Function Module Errors: The function module being called may have internal errors or may not be properly implemented.
  System Load: High load on the SAP system can lead to timeouts or failures in processing RFC calls.
  Transport Issues: If the function module was recently transported, there may be inconsistencies or missing dependencies.
  
  Solutions:
  
  Check Network Connectivity: Ensure that there are no network issues between