How To Fix WD255 - System error: Function was canceled

SAP Error Message - Details

• Message type: E = Error

• Message class: WD - Workflow definition

• Message number: 255

• Message text: System error: Function was canceled

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WD255 - System error: Function was canceled ?

  Certainly! Here's a detailed explanation regarding the SAP error message:
  
  SAP Error Message:
  WD255 System error: Function was canceled
  
  Cause:
  The error message WD255 System error: Function was canceled typically occurs in the Web Dynpro ABAP environment. It indicates that a function module or a method call was aborted or canceled during execution. This can happen due to several reasons, including but not limited to:
  
  User cancellation: The user manually canceled the operation (e.g., by pressing a cancel button or closing a window).
  Timeouts: The system or the Web Dynpro runtime environment timed out waiting for a response.
  Backend errors: The called function module or method encountered an error and aborted.
  Authorization issues: The user does not have the required authorization, causing the function to be canceled.
  Programming errors: The function module or method was explicitly canceled in the code due to some validation or error condition.
  Communication problems: Network or RFC communication issues between the Web Dynpro frontend and backend.
  
  
  Solution:
  To resolve the WD255 System error: Function was canceled, consider the following steps:
  
  
  Check User Actions:
  
  Verify if the user canceled the operation intentionally.
  If yes, inform the user about the consequences or provide a confirmation dialog before cancellation.
  
  
  
  Analyze Logs and Traces:
  
  Check the ST22 (ABAP dump analysis) for any short dumps related to the error.
  Review SM21 (System log) and SMGW (Gateway log) for communication errors.
  Use /IWFND/ERROR_LOG if the error occurs in OData services.
  
  
  
  Debug the Application:
  
  Set breakpoints in the Web Dynpro component or the called function module/method.
  Identify where the function is being canceled.
  Check for explicit LEAVE TO SCREEN, MESSAGE ... RAISING, or RAISE statements that might cancel the function.
  
  
  
  Check Authorizations:
  
  Verify if the user has the necessary authorizations to execute the function.
  Use transaction SU53 immediately after the error to check for missing authorizations.
  
  
  
  Review Timeout Settings:
  
  Check the Web Dynpro timeout parameters in SICF and the backend system.
  Increase timeout values if necessary.
  
  
  
  Check Network and RFC Connections:
  
  Verify the RFC destinations used by the Web Dynpro application.
  Test RFC connections in SM59.
  Resolve any network or communication issues.
  
  
  
  Apply SAP Notes:
  
  Search for relevant SAP Notes using the message ID and text.
  Apply any recommended patches or corrections.
  
  
  
  
  Related Information:
  
  Message Class: WD (Web Dynpro)
  Transaction Codes:  
  
  SE80 (Web Dynpro Component Browser)  
  ST22 (Dump Analysis)  
  SM21 (System Log)  
  SM59 (RFC Destinations)  
  SU53 (Authorization Check)  
  
  
  SAP Help: Web Dynpro ABAP documentation for error handling and debugging.
  Common SAP Notes:  
  
  SAP Note 0000000 (example placeholder, check SAP Support Portal for actual notes)  
  Notes related to Web Dynpro runtime errors and function cancellations.
  
  
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Cause
  Function module or method call canceled due to user action, timeout, authorization, or backend error.
  
  
  Solution
  Check user cancellation, analyze logs, debug code, verify authorizations, check timeouts and RFC connections, apply SAP Notes.
  
  
  Related Info
  Use ST22, SM21, SM59, SU53; refer to Web Dynpro documentation and SAP Notes.
  
  
  
  
  If you provide more context (e.g., the exact scenario, transaction, or Web Dynpro application), I can help you with a more specific diagnosis and solution.