How To Fix ESH_INTEGRATION243 - RFC connection error: &1

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_INTEGRATION - ESH Integration

• Message number: 243

• Message text: RFC connection error: &1

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 ESH_INTEGRATION243 - RFC connection error: &1 ?

  The SAP error message ESH_INTEGRATION243, which indicates an RFC (Remote Function Call) connection error, typically arises when there is an issue with the connection between the SAP system and another system or service, such as a database or another SAP instance. The error message includes a placeholder (&1) that usually provides more specific information about the nature of the connection issue.
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP system and the target system.
  Configuration Errors: 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.
  Service Availability: The target system or service may be down or not reachable.
  Firewall Restrictions: Firewalls may be blocking the required ports for the RFC connection.
  Incorrect Parameters: The parameters defined in the RFC destination may be incorrect or incomplete.
  
  Solutions:
  
  
  Check Network Connectivity:
  
  Use tools like ping or traceroute to verify that the SAP system can reach the target system.
  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 that is causing the error.
  Ensure that the connection type, target host, and system number are correctly configured.
  
  
  
  Test the RFC Connection:
  
  In transaction SM59, select the RFC destination and use the "Connection Test" option to see if the connection can be established successfully.
  
  
  
  Check User Authorizations:
  
  Ensure that the user credentials used for the RFC connection have the necessary authorizations to access the target system.
  
  
  
  Check Target System Availability:
  
  Verify that the target system is up and running and that the required services are active.
  
  
  
  Review Firewall Settings:
  
  Ensure that any firewalls between the SAP system and the target system allow traffic on the required ports.
  
  
  
  Review Logs:
  
  Check the SAP system logs (transaction SM21) and the application logs (transaction SLG1) for any additional error messages that may provide more context.
  
  
  
  Consult Documentation:
  
  Refer to SAP Notes or documentation related to the specific RFC connection type you are using for any known issues or additional troubleshooting steps.
  
  
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to RFC connections.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  System Administration: Involve your SAP Basis team for deeper analysis and resolution if the issue persists.
  
  By following these steps, you should be able to identify and resolve the cause of the ESH_INTEGRATION243 RFC connection error.