How To Fix TG231 - RFC logon canceled

SAP Error Message - Details

• Message type: E = Error

• Message class: TG - Messages for Upgrade Repository Switch

• Message number: 231

• Message text: RFC logon canceled

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 TG231 - RFC logon canceled ?

  The SAP error message TG231, which indicates "RFC logon canceled," typically occurs when a Remote Function Call (RFC) connection is interrupted or canceled during the logon process. This can happen for various reasons, and understanding the cause is essential for troubleshooting and resolving the issue.
  Causes of TG231 RFC Logon Canceled
  
  
  User Cancellation: The user may have manually canceled the logon process, either intentionally or accidentally.
  
  
  Timeouts: The logon process may take too long, leading to a timeout. This can happen if the system is slow or if there are network issues.
  
  
  Network Issues: Problems with the network connection between the client and the SAP server can lead to interruptions in the logon process.
  
  
  Authorization Issues: If the user does not have the necessary authorizations to log on to the system, the logon may be canceled.
  
  
  Configuration Issues: Incorrect configuration of the RFC destination or the SAP system can lead to logon failures.
  
  
  System Load: High load on the SAP server can cause delays in processing logon requests, leading to cancellations.
  
  
  Solutions to TG231 RFC Logon Canceled
  
  
  Check User Actions: Ensure that the user did not cancel the logon process manually. If they did, they should try logging in again.
  
  
  Increase Timeout Settings: If timeouts are an issue, consider increasing the timeout settings for the RFC connection in the SAP system.
  
  
  Network Troubleshooting: Check the network connection between the client and the SAP server. Ensure that there are no firewalls or network issues causing interruptions.
  
  
  Verify Authorizations: Ensure that the user has the necessary authorizations to log on to the SAP system. Check the user roles and profiles.
  
  
  Review RFC Configuration: Check the configuration of the RFC destination in transaction SM59. Ensure that the settings are correct and that the connection is properly configured.
  
  
  Monitor System Performance: Use transaction SM50 or SM66 to monitor the performance of the SAP system. If the system is under heavy load, consider optimizing performance or scheduling logon attempts during off-peak hours.
  
  
  Check SAP Notes: Look for any relevant SAP Notes that may address known issues related to RFC logon problems. SAP frequently updates its knowledge base with solutions to common issues.
  
  
  Consult Logs: Review the system logs (transaction SM21) and the developer traces (transaction ST22) for any additional error messages or information that could help diagnose the issue.
  
  
  Related Information
  
  
  RFC Connections: Understanding how RFC connections work in SAP can help in troubleshooting. Familiarize yourself with transaction SM59, which is used to manage RFC destinations.
  
  
  SAP Basis Administration: Knowledge of SAP Basis administration can be beneficial, as many logon issues are related to system configuration and performance.
  
  
  User Management: Familiarity with user management in SAP (transactions SU01, PFCG) can help in verifying user roles and authorizations.
  
  
  By following these steps and understanding the potential causes, you should be able to resolve the TG231 RFC logon canceled error effectively. If the issue persists, consider reaching out to your SAP Basis team or SAP support for further assistance.