How To Fix TQ231 - RFC logon canceled

SAP Error Message - Details

• Message type: E = Error

• Message class: TQ - SAPup Messages

• 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 TQ231 - RFC logon canceled ?

  The SAP error message TQ231, which indicates "RFC logon canceled," typically occurs when there is an issue with the Remote Function Call (RFC) connection between SAP systems or between an SAP system and an external application. This error can arise due to various reasons, including user authentication issues, network problems, or configuration errors.
  Causes of TQ231 RFC Logon Canceled
  
  
  User Authentication Issues:
  
  The user credentials (username/password) provided for the RFC connection may be incorrect.
  The user may not have the necessary authorizations to log in to the target system.
  
  
  
  Network Issues:
  
  There may be network connectivity problems between the systems involved in the RFC call.
  Firewalls or security settings may be blocking the connection.
  
  
  
  Configuration Errors:
  
  The RFC destination may not be configured correctly in the SAP system (e.g., incorrect host name, system number, or client).
  The target system may not be running or may be in a state that does not allow logons.
  
  
  
  Timeouts:
  
  The RFC call may be timing out due to long processing times or unresponsive systems.
  
  
  
  SAP System Issues:
  
  The target SAP system may be down or undergoing maintenance.
  There may be issues with the SAP kernel or other system components.
  
  
  
  Solutions to TQ231 RFC Logon Canceled
  
  
  Check User Credentials:
  
  Verify that the username and password used for the RFC connection are correct.
  Ensure that the user has the necessary authorizations in the target system.
  
  
  
  Test RFC Connection:
  
  Use transaction code SM59 to test the RFC destination. This will help identify if the connection is working properly.
  Check the connection type (e.g., TCP/IP) and ensure that the settings are correct.
  
  
  
  Network Troubleshooting:
  
  Check for any network issues that may be affecting connectivity between the systems.
  Ensure that firewalls or security settings are not blocking the RFC connection.
  
  
  
  Review Configuration:
  
  Double-check the configuration of the RFC destination in SM59. Ensure that the host name, system number, and client are correct.
  Make sure that the target system is up and running.
  
  
  
  Monitor System Performance:
  
  Check for any performance issues on the target system that may be causing delays or timeouts.
  Review system logs for any errors or warnings that may provide additional context.
  
  
  
  Consult SAP Notes:
  
  Look for relevant SAP Notes that may address specific issues related to the TQ231 error. SAP frequently updates its knowledge base with solutions for known issues.
  
  
  
  Related Information
  
  
  Transaction Codes:
  
  SM59: Manage RFC destinations.
  SM21: System log for checking system messages.
  ST22: Dump analysis for checking ABAP runtime errors.
  SMLG: Logon groups for load balancing.
  
  
  
  SAP Documentation:
  
  Refer to SAP Help Portal for detailed documentation on RFC connections and troubleshooting.
  
  
  
  SAP Community:
  
  Engage with the SAP Community forums for insights and solutions from other users who may have encountered similar issues.
  
  
  
  By following these steps, you should be able to diagnose and resolve the TQ231 RFC logon canceled error in your SAP environment.