How To Fix RSM599 - RFC error: &

SAP Error Message - Details

• Message type: E = Error

• Message class: RSM -

• Message number: 599

• Message text: RFC error: &

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSM599 - RFC error: & ?

  The SAP error message RSM599 with the description "RFC error: &" typically indicates that there is an issue with Remote Function Call (RFC) communication between SAP systems or between an SAP system and an external system. The "&" in the message usually represents a specific error code or message that provides more details about the nature of the RFC error.
  Possible Causes:
  
  Network Issues: There may be network connectivity problems between the SAP systems or between the SAP system and the external system.
  Configuration Errors: Incorrect RFC destination configuration in the SAP system can lead to communication failures.
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations.
  System Availability: The target system may be down or not reachable.
  Firewall Restrictions: Firewalls or security settings may be blocking the RFC communication.
  SAP Notes: There may be known issues or bugs related to the specific version of SAP you are using.
  
  Solutions:
  
  Check Network Connectivity: Ensure that the network connection between the systems is stable and that there are no interruptions.
  Verify RFC Destination: Go to transaction SM59 in the SAP GUI and check the configuration of the RFC destination. Ensure that the connection parameters are correct.
  Test RFC Connection: Use the "Test Connection" feature in SM59 to verify that the RFC destination can be reached successfully.
  Check Authorizations: Ensure that the user credentials used for the RFC connection have the necessary authorizations to perform the required actions.
  Review System Logs: Check the system logs (transaction SM21) for any additional error messages that may provide more context about the issue.
  Check SAP Notes: Look for relevant SAP Notes that may address the specific error code or issue you are encountering.
  Firewall Settings: If applicable, check firewall settings to ensure that the necessary ports for RFC communication are open.
  
  Related Information:
  
  Transaction Codes: 
  
  SM59: RFC Destinations
  SM21: System Log
  ST22: Dump Analysis
  SICF: HTTP Service Hierarchy
  
  
  SAP Notes: Search the SAP Support Portal for notes related to RFC errors and your specific SAP version.
  Documentation: Review SAP documentation for troubleshooting RFC connections and understanding the underlying architecture.
  
  If the error persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or reach out to SAP support for further assistance.