How To Fix TG230 - Starting RFC logon: system = &, GwHost = &, GwService = &

SAP Error Message - Details

• Message type: E = Error

• Message class: TG - Messages for Upgrade Repository Switch

• Message number: 230

• Message text: Starting RFC logon: system = &, GwHost = &, GwService = &

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message TG230 - Starting RFC logon: system = &, GwHost = &, GwService = & ?

  The SAP error message TG230 indicates an issue with the Remote Function Call (RFC) logon process. This error typically arises when there are problems with the connection settings or network configuration between the SAP systems involved. Here’s a breakdown of the potential causes, solutions, and related information for this error:
  Causes:
  
  Incorrect Connection Parameters: The parameters for the RFC connection (system, GwHost, GwService) may be incorrectly configured in the SAP system.
  Network Issues: There may be network connectivity issues between the SAP systems, such as firewalls blocking the connection or incorrect routing.
  Gateway Configuration: The SAP Gateway might not be properly configured or running on the specified host and service.
  SAP System Down: The target SAP system may be down or not reachable.
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations.
  
  Solutions:
  
  
  Check Connection Parameters:
  
  Verify the RFC destination settings in transaction SM59. Ensure that the parameters (system, GwHost, GwService) are correctly configured.
  Test the connection using the "Test Connection" button in SM59.
  
  
  
  Network Configuration:
  
  Ensure that there are no network issues preventing the connection. Check if the target system is reachable via ping or telnet.
  If there are firewalls in place, ensure that the necessary ports are open for RFC communication.
  
  
  
  Gateway Configuration:
  
  Check if the SAP Gateway is running on the target system. You can do this by using transaction SMGW to monitor the gateway.
  Ensure that the gateway host and service are correctly specified in the RFC destination.
  
  
  
  Check System Status:
  
  Verify that the target SAP system is up and running. You can check this by logging into the system directly.
  
  
  
  User Authorization:
  
  Ensure that the user credentials used for the RFC connection have the necessary authorizations to perform the required actions.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: To manage RFC destinations.
  SMGW: To monitor the SAP Gateway.
  SICF: To check the HTTP services if applicable.
  
  
  
  Logs:
  
  Check the system logs (transaction SM21) for any additional error messages that might provide more context.
  Review the developer trace files (transaction ST11) for detailed error information.
  
  
  
  Documentation:
  
  Refer to SAP Notes and documentation for specific troubleshooting steps related to RFC connections and gateway issues.
  
  
  
  By following these steps, you should be able to diagnose and resolve the TG230 error in your SAP environment. If the issue persists, consider reaching out to SAP support for further assistance.