How To Fix S#480 - Error when establishing RFC connection to system &

SAP Error Message - Details

• Message type: E = Error

• Message class: S# -

• Message number: 480

• Message text: Error when establishing RFC connection to system &

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 S#480 - Error when establishing RFC connection to system & ?

  The SAP error message S#480 indicates that there is an issue when trying to establish a Remote Function Call (RFC) connection to a specified system. This error can arise due to various reasons, and here are some common causes, potential solutions, and related information:
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP systems.
  Incorrect Configuration: The RFC destination may not be configured correctly in the SAP system.
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations.
  System Availability: The target SAP system may be down or not reachable.
  Firewall Restrictions: Firewalls may be blocking the required ports for RFC communication.
  SAP Gateway Issues: The SAP Gateway service may not be running on the target system.
  
  Solutions:
  
  
  Check Network Connectivity:
  
  Use tools like ping or telnet to check if the target system is reachable.
  Ensure that there are no network outages or issues.
  
  
  
  Verify RFC Destination Configuration:
  
  Go to transaction SM59 in the SAP GUI.
  Check the configuration of the RFC destination (e.g., TCP/IP settings, target host, and system number).
  Test the connection from within SM59 to see if it succeeds.
  
  
  
  Check User Authorizations:
  
  Ensure that the user ID used for the RFC connection has the necessary authorizations in both the source and target systems.
  Check roles and profiles assigned to the user.
  
  
  
  System Availability:
  
  Verify that the target SAP system is up and running.
  Check the system logs for any errors or issues that may indicate downtime.
  
  
  
  Firewall and Security Settings:
  
  Ensure that the necessary ports (e.g., 3200 for SAP GUI, 3300 for RFC) are open on firewalls between the systems.
  Consult with your network/security team if needed.
  
  
  
  Check SAP Gateway:
  
  Ensure that the SAP Gateway service is running on the target system.
  You can check this using transaction SMGW in the target system.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: Manage RFC Destinations
  SMGW: Monitor SAP Gateway
  SICF: Check HTTP services (if applicable)
  
  
  
  Logs and Traces:
  
  Check the developer traces (transaction ST11) for more detailed error messages.
  Review the system logs (transaction SM21) for any related errors.
  
  
  
  SAP Notes: 
  
  Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to RFC connections.
  
  
  
  By following these steps, you should be able to diagnose and resolve the S#480 error when establishing an RFC connection in SAP. If the issue persists, consider reaching out to SAP support for further assistance.