How To Fix /TMF/TDS053 - RFC connection error, check the external systems mapping. &

SAP Error Message - Details

• Message type: E = Error

• Message class: /TMF/TDS -

• Message number: 053

• Message text: RFC connection error, check the external systems mapping. &

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 /TMF/TDS053 - RFC connection error, check the external systems mapping. & ?

  The SAP error message /TMF/TDS053 RFC connection error, check the external systems mapping typically indicates an issue with the Remote Function Call (RFC) connection between your SAP system and an external system. This error can arise due to various reasons, including configuration issues, network problems, or incorrect mapping of external systems.
  Causes:
  
  Incorrect RFC Destination: The RFC destination may not be correctly configured in the SAP system.
  Network Issues: There may be network connectivity problems between the SAP system and the external system.
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations.
  External System Down: The external system that you are trying to connect to may be down or not reachable.
  Mapping Issues: The external systems mapping may not be correctly set up, leading to the inability to establish a connection.
  
  Solutions:
  
  
  Check RFC Destination:
  
  Go to transaction SM59 in SAP.
  Verify the configuration of the RFC destination. Ensure that the connection type, target host, and service are correctly set.
  Test the connection using the "Connection Test" button.
  
  
  
  Network Connectivity:
  
  Ensure that there are no firewall rules blocking the connection between the SAP system and the external system.
  Use tools like ping or telnet to check connectivity to the external system.
  
  
  
  Authorization Check:
  
  Verify that the user credentials used for the RFC connection have the necessary authorizations to access the external system.
  Check the user mapping in the external system if applicable.
  
  
  
  Check External System Status:
  
  Ensure that the external system is up and running. Check logs or system status in the external system.
  
  
  
  Review External Systems Mapping:
  
  Check the mapping configuration in the SAP system to ensure that it correctly corresponds to the external system.
  If applicable, review any middleware or integration tools that may be involved in the mapping process.
  
  
  
  Consult Logs:
  
  Check the SAP system logs (transaction SM21) and the application logs (transaction SLG1) for any additional error messages that may provide more context.
  
  
  
  Related Information:
  
  Documentation: Refer to SAP Help documentation for detailed information on configuring RFC connections and troubleshooting.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to the error message.
  Community Forums: Consider checking SAP Community forums for similar issues and solutions shared by other users.
  
  By following these steps, you should be able to identify and resolve the cause of the /TMF/TDS053 RFC connection error. If the issue persists, consider reaching out to your SAP Basis team or SAP support for further assistance.