How To Fix 6G027 - RFC connection & already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: 6G - Messages for System Administration Assistant

• Message number: 027

• Message text: RFC connection & already exists

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 6G027 - RFC connection & already exists ?

  The SAP error message 6G027 typically indicates that there is an issue with an RFC (Remote Function Call) connection, specifically that the connection already exists. This error can occur in various scenarios, such as when trying to create a new RFC connection that conflicts with an existing one.
  Causes:
  
  Duplicate Connection: The most common cause is that an RFC connection with the same name already exists in the system.
  Configuration Issues: There may be misconfigurations in the RFC destination settings.
  Network Issues: Problems with network connectivity or firewall settings that prevent proper communication.
  System Load: High system load or resource constraints may lead to issues when trying to establish new connections.
  
  Solutions:
  
  
  Check Existing Connections:
  
  Go to transaction SM59 (RFC Destinations) and check if the RFC connection you are trying to create already exists. If it does, you may need to modify or delete it instead of creating a new one.
  
  
  
  Modify Existing Connection:
  
  If the existing connection is not configured correctly, you can modify its settings to meet your requirements.
  
  
  
  Delete Unused Connections:
  
  If there are old or unused connections that are no longer needed, consider deleting them to avoid confusion.
  
  
  
  Check for System Load:
  
  Monitor the system performance and check if there are any resource constraints. If the system is under heavy load, it may affect the ability to create new connections.
  
  
  
  Review Network Configuration:
  
  Ensure that the network settings, including firewalls and routing, are correctly configured to allow RFC communication.
  
  
  
  Restart SAP Services:
  
  In some cases, restarting the SAP services or the application server may resolve temporary issues related to RFC connections.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: To manage RFC destinations.
  SM21: To check system logs for any related errors.
  ST22: To check for dumps that might provide more context on the issue.
  
  
  
  Documentation: Refer to SAP Help documentation for detailed information on RFC connections and troubleshooting.
  
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address specific issues related to RFC connections and error 6G027.
  
  
  If the problem 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.