How To Fix CRM_WFD_COMMON011 - Communication failure while calling RFC function module &1

SAP Error Message - Details

• Message type: E = Error

• Message class: CRM_WFD_COMMON - CRM WFD Common Messages

• Message number: 011

• Message text: Communication failure while calling RFC function module &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CRM_WFD_COMMON011 - Communication failure while calling RFC function module &1 ?

  The SAP error message CRM_WFD_COMMON011 Communication failure while calling RFC function module &1 typically indicates that there is a communication issue when trying to call a Remote Function Call (RFC) function module in the SAP system. This can occur in various scenarios, particularly in SAP CRM (Customer Relationship Management) environments where different systems or components need to communicate with each other.
  Causes:
  
  Network Issues: There may be network connectivity problems between the systems involved in the RFC call.
  RFC Destination Configuration: The RFC destination may not be configured correctly in the SAP system. This includes incorrect settings for the target system, such as the system ID, client, user credentials, or connection type.
  Authorization Issues: The user credentials used for the RFC call may not have the necessary authorizations to execute the function module.
  Function Module Issues: The function module being called may not exist, may be inactive, or may have been changed or deleted.
  System Load: High load on the SAP system or the target system can lead to timeouts or communication failures.
  Firewall or Security Settings: Firewalls or security settings may be blocking the communication between the systems.
  
  Solutions:
  
  Check Network Connectivity: Ensure that there is proper network connectivity between the systems. 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 that is being used. Ensure that the connection parameters (such as target system, client, user, and password) are correct.
  Test the connection using the "Test Connection" button in the RFC destination configuration.
  
  
  Check Authorizations: Ensure that the user credentials used for the RFC call have the necessary authorizations to execute the function module. You can check this in transaction SU01 or PFCG.
  Validate Function Module: Ensure that the function module being called exists and is active. You can check this in transaction SE37 or SE80.
  Monitor System Performance: Check the performance of both the source and target systems. Use transaction SM50 or SM66 to monitor active processes and system load.
  Review Firewall Settings: If applicable, check the firewall settings to ensure that the necessary ports for RFC communication are open.
  
  Related Information:
  
  Transaction Codes:
  
  SM59: RFC Destinations
  SE37: Function Module
  SU01: User Maintenance
  PFCG: Role Maintenance
  SM50 / SM66: Process Overview
  
  
  SAP Notes: Check for any relevant SAP Notes that may address known issues related to RFC communication failures.
  Logs: Review system logs (transaction SM21) and application logs (transaction SLG1) for additional error messages or warnings that may provide more context about the failure.
  
  By following these steps, you should be able to diagnose and resolve the communication failure indicated by the error message CRM_WFD_COMMON011.