How To Fix /IWBEP/MC_SB_DPC_USR004 - RFC call ended with "Communication Failure" exception (&1)

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/MC_SB_DPC_USR -

• Message number: 004

• Message text: RFC call ended with "Communication Failure" exception (&1)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/MC_SB_DPC_USR004 - RFC call ended with "Communication Failure" exception (&1) ?

  The SAP error message /IWBEP/MC_SB_DPC_USR004 RFC call ended with "Communication Failure" exception (&1) typically indicates that there was a communication issue when trying to execute a Remote Function Call (RFC) in the context of an OData service or a similar scenario. This error can arise from various underlying causes, and here are some common causes, potential solutions, and related information:
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP system and the client or between different SAP systems.
  System Configuration: Incorrect configuration of the RFC destination or the backend system can lead to communication failures.
  Timeouts: The RFC call may be timing out due to long processing times or heavy load on the server.
  Authorization Issues: The user executing the RFC call may not have the necessary authorizations to perform the action.
  Service Unavailability: The backend service might be down or not properly registered.
  Firewall or Security Settings: Firewalls or security settings may be blocking the communication.
  
  Solutions:
  
  Check Network Connectivity: Ensure that there is proper network connectivity between the systems involved. You can use tools like ping or traceroute to diagnose network issues.
  Verify RFC Destination: Go to transaction SM59 in the SAP GUI and check the configuration of the RFC destination. Ensure that it is correctly set up and test the connection.
  Increase Timeout Settings: If the issue is related to timeouts, consider increasing the timeout settings in the RFC destination configuration.
  Check Authorizations: Ensure that the user has the necessary authorizations to execute the RFC call. You can check this in transaction SU53 after the error occurs.
  Monitor Backend Services: Check if the backend service is running and accessible. You can use transaction SICF to check the status of the OData service.
  Review Logs: Check the system logs (transaction SM21) and the application logs (transaction SLG1) for any additional error messages that might provide more context.
  Firewall Settings: If applicable, review firewall settings to ensure that they are not blocking the required ports for RFC communication.
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that might address specific issues related to this error message.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Documentation: Review the official SAP documentation for OData services and RFC communication for best practices and troubleshooting steps.
  
  If the issue persists after trying the above solutions, it may be necessary to involve your SAP Basis team or SAP support for further investigation.