How To Fix WFRE_CON204 - FRE_SEND_OPTION-Parameter missing! FRE_ACTIVE or FRE_RFC is initial

SAP Error Message - Details

• Message type: E = Error

• Message class: WFRE_CON - Messages for SAP R/3 to SAP F&R Connection

• Message number: 204

• Message text: FRE_SEND_OPTION-Parameter missing! FRE_ACTIVE or FRE_RFC is initial

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• What is the cause and solution for SAP error message WFRE_CON204 - FRE_SEND_OPTION-Parameter missing! FRE_ACTIVE or FRE_RFC is initial ?

  The SAP error message:
  WFRE_CON204 FRE_SEND_OPTION-Parameter missing! FRE_ACTIVE or FRE_RFC is initial
  
  Cause
  This error occurs in the SAP Workflow Runtime Environment (WFRE) when a function module or workflow container expects the parameter FRE_SEND_OPTION to be filled with either FRE_ACTIVE or FRE_RFC, but both are found to be initial (empty or not set). Essentially, the workflow runtime is trying to send or trigger a workflow task or event, but the communication method or sending option is not specified.
  
  FRE_SEND_OPTION is a structure or parameter that controls how the workflow runtime sends messages or triggers events.
  FRE_ACTIVE and FRE_RFC are flags or parameters within FRE_SEND_OPTION that indicate whether the workflow should be executed actively (synchronously) or via RFC (Remote Function Call).
  If both are initial, the system does not know how to proceed with sending the workflow message.
  
  
  When does it happen?
  
  When triggering workflows programmatically or via function modules like SAP_WAPI_CREATE_EVENT or SAP_WAPI_START_WORKFLOW.
  When custom code or enhancements call workflow APIs but do not properly set the sending options.
  When workflow runtime environment parameters are not correctly initialized or passed.
  
  
  Solution
  
  
  Check the calling program or function module:
  
  Ensure that when calling workflow APIs, the FRE_SEND_OPTION parameter is properly filled.
  For example, set either FRE_ACTIVE = 'X' (for synchronous processing) or FRE_RFC = 'X' (for asynchronous processing via RFC).
  
  
  
  Example of setting FRE_SEND_OPTION:
  DATA: fre_send_option TYPE fre_send_option.
  
  fre_send_option-fre_active = 'X'. " or fre_send_option-fre_rfc = 'X'
  
  CALL FUNCTION 'SAP_WAPI_CREATE_EVENT'
    EXPORTING
      event                 = 'YOUR_EVENT'
      container             = your_container
      fre_send_option       = fre_send_option
    IMPORTING
      event_id              = lv_event_id
    EXCEPTIONS
      error_in_event_raise  = 1
      OTHERS                = 2.
  
  
  Check workflow configuration:
  
  If this error occurs during standard workflow processing, check if any custom workflow container or event raising logic is missing the send option.
  Review any user-exits, BAdIs, or enhancements related to workflow triggering.
  
  
  
  SAP Notes and Support:
  
  Check SAP Notes for any known issues related to WFRE_CON204.
  Sometimes, patches or kernel updates fix workflow runtime environment bugs.
  
  
  
  
  Related Information
  
  WFRE_CON204 is a workflow runtime error related to the Workflow Runtime Environment (WFRE).
  FRE_SEND_OPTION is a structure used internally by the workflow runtime to control how events and tasks are sent.
  Workflow APIs like SAP_WAPI_CREATE_EVENT, SAP_WAPI_START_WORKFLOW require proper initialization of this parameter.
  The error indicates a missing or incorrect parameter setup in workflow triggering.
  
  
  Summary
  
  
  
  Aspect
  Details
  
  
  
  
  Error
  WFRE_CON204 FRE_SEND_OPTION-Parameter missing! FRE_ACTIVE or FRE_RFC is initial
  
  
  Cause
  Workflow send option parameter not set; both FRE_ACTIVE and FRE_RFC are initial
  
  
  Effect
  Workflow runtime cannot determine how to send/trigger the workflow event or task
  
  
  Solution
  Set FRE_SEND_OPTION parameter properly with either FRE_ACTIVE = 'X' or FRE_RFC = 'X'
  
  
  Where to fix
  Calling program, custom workflow code, or workflow container/event raising logic
  
  
  
  
  If you provide the exact context or code snippet where this error occurs, I can help you with a more precise fix.