How To Fix /IWFND/CM_V4_RUNTIME017 - RFC Error: Communication failure '&1&2...'

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/CM_V4_RUNTIME -

• Message number: 017

• Message text: RFC Error: Communication failure '&1&2...'

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 /IWFND/CM_V4_RUNTIME017 - RFC Error: Communication failure '&1&2...' ?

  The SAP error message /IWFND/CM_V4_RUNTIME017 RFC Error: Communication failure '&1&2...' typically indicates a communication issue between the SAP Gateway and the backend system. This error can occur in various scenarios, such as when trying to access OData services or when there are issues with the Remote Function Call (RFC) connections.
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP Gateway and the backend system.
  RFC Destination Configuration: The RFC destination used to connect to the backend system may be incorrectly configured or inactive.
  Backend System Down: The backend system might be down or not reachable due to maintenance or other issues.
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations.
  Timeouts: The request may be timing out due to long processing times or heavy load on the backend system.
  Firewall Restrictions: Firewalls or security settings may be blocking the communication between systems.
  
  Solutions:
  
  Check Network Connectivity: Ensure that the network connection between the SAP Gateway and the backend system is stable and functioning. You can use tools like ping or traceroute to diagnose network issues.
  Verify RFC Destination:
  
  Go to transaction SM59 in the SAP GUI.
  Check the configuration of the RFC destination used for the connection.
  Test the connection to ensure it is working properly.
  
  
  Check Backend System Status: Ensure that the backend system is up and running. You can check the system logs or use transaction SM51 to see the status of application servers.
  Review Authorizations: Ensure that the user credentials used for the RFC connection have the necessary authorizations to access the backend system.
  Increase Timeout Settings: If the request is timing out, consider increasing the timeout settings in the RFC destination configuration.
  Check Firewall Settings: Ensure that there are no firewall rules blocking the communication between the SAP Gateway and the backend system.
  
  Related Information:
  
  Transaction Codes:
  
  SM59: To manage and test RFC destinations.
  SM21: To check system logs for errors.
  ST22: To check for dumps that may provide more context on the error.
  SICF: To manage and check the status of ICF services.
  
  
  SAP Notes: Check for relevant SAP Notes that may address specific issues related to this error message. You can search for notes in the SAP Support Portal.
  Logs and Traces: Enable logging or tracing for the OData service to gather more information about the error.
  
  By following these steps, you should be able to diagnose and resolve the communication failure indicated by the error message /IWFND/CM_V4_RUNTIME017.