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

SAP Error Message - Details

• 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 the systems involved in the RFC call. You can use tools like ping or traceroute to diagnose connectivity.
  Review RFC Destination: Verify the configuration of the RFC destination in transaction SM59. Ensure that the connection parameters are correct and that the destination is reachable.
  Check Authorizations: Use transaction SU53 to check for authorization issues after the error occurs. Ensure that the user has the necessary permissions to execute the function module.
  Debug the Function Module: If you have access, debug the function module to identify any internal errors or exceptions that may be causing the failure.
  Monitor System Performance: Use transaction SM37 to check for any long-running jobs or high system load that may be affecting performance. Consider optimizing or scheduling jobs during off-peak hours.
  Review Transport Logs: If the function module was recently transported, check the transport logs for any errors or warnings that may indicate issues with the transport.
  Check SAP Notes: Search the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  Related Information:
  
  Transaction Codes: 
  
  SM59 - RFC Destinations
  SU53 - Authorization Check
  SM37 - Job Monitoring
  SE37 - Function Module Maintenance
  
  
  SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support with detailed logs and error messages for further assistance.
  
  By systematically checking these areas, you should be able to identify the root cause of the error and implement an appropriate solution.