How To Fix ESSC_GENERIC356 - Communication failure while calling RFC destination &1

SAP Error Message - Details

• Message type: E = Error

• Message class: ESSC_GENERIC - ESSC Generic Services

• Message number: 356

• Message text: Communication failure while calling RFC destination &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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message ESSC_GENERIC356 - Communication failure while calling RFC destination &1 ?

  The SAP error message ESSC_GENERIC356 indicates a communication failure while trying to call a Remote Function Call (RFC) destination. This error can occur in various scenarios, particularly when there are issues with the network, configuration, or the RFC destination itself.
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP system and the target system defined in the RFC destination.
  RFC Destination Configuration: The RFC destination may not be configured correctly. This includes incorrect parameters such as the target system's IP address, port, or user credentials.
  Authorization Issues: The user credentials used in the RFC destination may not have the necessary authorizations to perform the requested operation.
  Target System Down: The target system may be down or not reachable due to maintenance or other issues.
  Firewall Restrictions: Firewalls or security settings may be blocking the communication between the systems.
  SAP Gateway Issues: Problems with the SAP Gateway service can also lead to communication failures.
  
  Solutions:
  
  Check Network Connectivity: Ensure that the network connection between the SAP system and the target system is stable and operational. You can use tools like ping or traceroute to diagnose connectivity 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 parameters (like the target host, system number, client, user, and password) are correct.
  Test the connection using the "Connection Test" option in SM59.
  
  
  Check User Authorizations: Ensure that the user specified in the RFC destination has the necessary authorizations to access the target system and perform the required operations.
  Check Target System Status: Verify that the target system is up and running. If it is down, coordinate with the system administrators to resolve the issue.
  Review Firewall Settings: If applicable, check the firewall settings to ensure that the necessary ports for RFC communication are open.
  Check SAP Gateway: Ensure that the SAP Gateway service is running properly. You can check the status of the gateway using transaction SMGW.
  Review Logs: Check the system logs (transaction SM21) and the developer traces (transaction ST22) for any additional error messages that might provide more context about the failure.
  
  Related Information:
  
  RFC (Remote Function Call): A protocol used in SAP systems to enable communication between different SAP systems or between SAP and non-SAP systems.
  Transaction Codes:
  
  SM59: Manage RFC destinations.
  SMGW: Monitor the SAP Gateway.
  SM21: View system logs.
  ST22: Analyze dump analysis.
  
  
  SAP Notes: Check for any relevant SAP Notes that might address specific issues related to the error message.
  
  If the problem persists after following these steps, it may be beneficial to consult with your SAP Basis team or reach out to SAP support for further assistance.