How To Fix /IWNGW/CM_BEP_RT021 - Backend RFC destination not maintained

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWNGW/CM_BEP_RT -

• Message number: 021

• Message text: Backend RFC destination not maintained

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWNGW/CM_BEP_RT021 - Backend RFC destination not maintained ?

  The SAP error message /IWNGW/CM_BEP_RT021 Backend RFC destination not maintained typically indicates that there is a configuration issue related to the backend system's RFC (Remote Function Call) destination in the SAP Gateway setup. This error usually occurs when the system is trying to access a backend service, but the necessary RFC destination has not been defined or is not properly configured.
  Cause:
  
  Missing RFC Destination: The RFC destination that the SAP Gateway is supposed to use to connect to the backend system is not defined in the system.
  Incorrect Configuration: The RFC destination may exist but is not configured correctly (e.g., wrong connection parameters, incorrect user credentials).
  Authorization Issues: The user credentials used in the RFC destination may not have the necessary authorizations to access the backend system.
  Network Issues: There may be network connectivity issues preventing the SAP Gateway from reaching the backend system.
  
  Solution:
  
  
  Define RFC Destination:
  
  Go to transaction code SM59 in the SAP GUI.
  Check if the required RFC destination is defined. If not, create a new RFC destination.
  Ensure that the destination type is set correctly (usually "3" for a TCP/IP connection).
  Enter the correct connection parameters, including the target host, system number, and client.
  
  
  
  Test RFC Connection:
  
  After creating or modifying the RFC destination, use the "Test Connection" feature in SM59 to ensure that the connection to the backend system is successful.
  
  
  
  Check Authorization:
  
  Ensure that the user credentials specified in the RFC destination have the necessary authorizations to access the backend system.
  You may need to check the roles and authorizations assigned to the user in the backend system.
  
  
  
  Review Gateway Configuration:
  
  Ensure that the SAP Gateway is properly configured to use the correct RFC destination for the backend services.
  Check the relevant configuration in transaction SPRO under the SAP Gateway settings.
  
  
  
  Network Connectivity:
  
  Verify that there are no network issues preventing the SAP Gateway from reaching the backend system. This may involve checking firewalls, network routes, and other connectivity issues.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  SM59: RFC Destinations
  SPRO: Customizing (to check Gateway settings)
  SICF: Check if the relevant services are activated
  
  
  Logs and Traces:
  
  Check the system logs (SM21) and the developer traces (ST22) for any additional error messages that may provide more context.
  
  
  Documentation: Refer to SAP Help documentation for detailed guidance on configuring RFC destinations and troubleshooting connectivity issues.
  
  By following these steps, you should be able to resolve the error message /IWNGW/CM_BEP_RT021 Backend RFC destination not maintained.