How To Fix TB581 - RFC connection is not open

SAP Error Message - Details

• Message type: E = Error

• Message class: TB - SM31 table maintenance messages

• Message number: 581

• Message text: RFC connection is not open

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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Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

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Smart SAP Assistant

• What is the cause and solution for SAP error message TB581 - RFC connection is not open ?

  The SAP error message "TB581 RFC connection is not open" typically indicates that there is an issue with the Remote Function Call (RFC) connection between the SAP system and another system (which could be another SAP system or a non-SAP system). This error can occur for various reasons, and here are some common causes, solutions, and related information:
  Causes:
  
  Connection Configuration Issues: The RFC destination may not be configured correctly in the SAP system.
  Network Issues: There may be network connectivity problems between the systems.
  System Availability: The target system may be down or not reachable.
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations.
  Timeouts: The connection may have timed out due to inactivity.
  Firewall Restrictions: Firewalls may be blocking the required ports for RFC communication.
  
  Solutions:
  
  
  Check RFC Destination Configuration:
  
  Go to transaction SM59 in the SAP GUI.
  Verify the configuration of the RFC destination (e.g., TCP/IP settings, user credentials).
  Test the connection using the "Connection Test" button.
  
  
  
  Network Connectivity:
  
  Ensure that the network connection between the SAP systems is stable and operational.
  Use tools like ping or traceroute to check connectivity.
  
  
  
  Check System Status:
  
  Ensure that the target system is up and running.
  Check for any maintenance activities or downtimes.
  
  
  
  User Authorizations:
  
  Verify that the user credentials used for the RFC connection have the necessary authorizations.
  Check the user’s roles and profiles in transaction SU01.
  
  
  
  Increase Timeout Settings:
  
  If the connection is timing out, consider increasing the timeout settings in the RFC destination configuration.
  
  
  
  Firewall Settings:
  
  Ensure that the necessary ports for RFC communication (typically port 3200 for SAP) are open in the firewall settings.
  
  
  
  Check SAP Notes:
  
  Look for any relevant SAP Notes that may address specific issues related to RFC connections.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: Manage RFC Destinations
  ST22: Dump Analysis (to check for any ABAP runtime errors)
  SM21: System Log (to check for any system-related issues)
  
  
  
  SAP Documentation: Refer to the official 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 "TB581 RFC connection is not open" error in your SAP environment.