How To Fix ESH_EX005 - RFC communication failure:

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_EX - Extraction

• Message number: 005

• Message text: RFC communication failure:

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 ESH_EX005 - RFC communication failure: ?

  The SAP error message ESH_EX005 indicates an RFC (Remote Function Call) communication failure. This error typically occurs when there is an issue with the connection between the SAP system and another system or service, such as a database or an external application. Here are some common causes, potential solutions, and related information for this error:
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP system and the target system.
  Configuration Errors: Incorrect RFC destination configuration in the SAP system can lead to communication failures.
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations.
  Service Availability: The target service or system may be down or not reachable.
  Firewall Restrictions: Firewalls may be blocking the communication between the systems.
  SAP Gateway Issues: Problems with the SAP Gateway or the underlying transport layer can also cause this error.
  
  Solutions:
  
  
  Check Network Connectivity:
  
  Use tools like ping or traceroute to verify that the target system is reachable from the SAP server.
  Ensure that there are no network outages or issues.
  
  
  
  Verify RFC Destination:
  
  Go to transaction SM59 in the SAP GUI and check the configuration of the RFC destination.
  Ensure that the connection type, target host, and service are correctly configured.
  
  
  
  Test RFC Connection:
  
  In transaction SM59, select the RFC destination and use the "Test Connection" button to check if the connection is working.
  
  
  
  Check User Authorizations:
  
  Ensure that the user credentials used for the RFC connection have the necessary authorizations to access the target system.
  
  
  
  Review System Logs:
  
  Check the system logs (transaction SM21) and the developer trace files (transaction ST22) for any additional error messages or clues.
  
  
  
  Firewall Configuration:
  
  Ensure that firewalls are configured to allow traffic on the required ports for RFC communication.
  
  
  
  SAP Gateway Configuration:
  
  Check the SAP Gateway settings and ensure that it is running properly. You can use transaction SMGW to monitor the gateway.
  
  
  
  Consult SAP Notes:
  
  Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to RFC communication failures.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: RFC Destinations
  SM21: System Log
  ST22: Dump Analysis
  SMGW: SAP Gateway Monitor
  
  
  
  SAP Documentation: Refer to the official SAP documentation for detailed information on RFC communication and troubleshooting.
  
  
  SAP Community: Engage with the SAP Community forums for insights and solutions from other users who may have encountered similar issues.
  
  
  If the problem persists after trying the above solutions, it may be necessary to involve your SAP Basis team or consult SAP support for further assistance.