Stop googling SAP errors. Use our Free Essentials plan instead - no credit card needed. Start Now

Close

How To Fix WRF_CHAR_VAL121 - The specified function is invalid


SAP Error Message - Details

  • Message type: E = Error

  • Message class: WRF_CHAR_VAL - Messages for Package WRF_CHARACTERISTIC_VALUE_GRP

  • Message number: 121

  • Message text: The specified function is invalid

  • Show details Hide details


  • Self-Explanatory Message

    Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

    To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

    Unfortunately, there isn't any extra information in this error notice.



    What else can you do?

    First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

    Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

    You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.


Smart SAP Assistant

  • What is the cause and solution for SAP error message WRF_CHAR_VAL121 - The specified function is invalid ?

    SAP Error Message:
    WRF_CHAR_VAL121 The specified function is invalid


    Cause:

    This error typically occurs when a function code or function module being called or referenced in a workflow or program is not valid or recognized by the system. It can happen due to:

    • Incorrect or misspelled function code.
    • The function module or method does not exist or is not active.
    • The function is not allowed in the current context (e.g., in a workflow step or user action).
    • Custom developments or enhancements referencing invalid or obsolete function codes.
    • Authorization issues where the user does not have permission to execute the function.

    Where it commonly appears:

    • SAP Business Workflow (WF) when a workflow step calls a function that is invalid.
    • Custom ABAP programs or user exits/enhancements calling function modules.
    • User actions or tasks in workflows referencing invalid function codes.
    • SAP GUI transactions or reports that internally call invalid functions.

    Solution:

    1. Check the Function Code:

      • Verify the function code or function module name used in the workflow step, program, or user action.
      • Ensure it is spelled correctly and exists in the system (use transaction SE37 to check function modules).
    2. Validate Workflow Configuration:

      • If the error occurs in a workflow, check the workflow step or user decision step where the function is called.
      • Use transaction SWDD (Workflow Builder) to inspect the step and the function called.
      • Correct or replace the invalid function with a valid one.
    3. Check Authorization:

      • Ensure the user executing the function has the necessary authorizations.
      • Use transaction SU53 after the error to check for missing authorizations.
    4. Check for Custom Code Issues:

      • If the function is called from custom code, debug or review the code to ensure the function call is valid.
      • Check for any recent changes or transports that might have removed or altered the function.
    5. Activate or Reimport Function Modules:

      • If the function module exists but is inactive, activate it in SE37.
      • If missing, check if it belongs to a standard SAP component or add-on and re-import or repair the component.
    6. SAP Notes and Support:

      • Search SAP Notes for the error message or related function module issues.
      • Apply any relevant SAP Notes or patches.

    Related Information:

    • Transaction Codes:

      • SE37 - Function Builder (to check function modules)
      • SWDD - Workflow Builder (to check workflow steps)
      • SWI1 - Workflow log (to analyze workflow errors)
      • SU53 - Authorization check
      • ST22 - Dump analysis (if the error causes a dump)
    • SAP Documentation:

      • SAP Help Portal for Workflow and Function Modules.
      • SAP Community forums for similar issues.
    • Common SAP Notes:

      • Check for notes related to WRF_CHAR_VAL121 or invalid function calls in workflows.

    Summary:

    The error WRF_CHAR_VAL121 The specified function is invalid means that a function code or function module being called is not valid or recognized. The solution involves verifying the function code/module, checking workflow configuration, ensuring proper authorizations, and correcting any custom code or configuration errors.


    If you provide the context where this error occurs (e.g., during workflow execution, report run, transaction), I can help with more specific troubleshooting steps.

    • Do you have any question about this error?


      Upgrade now to chat with this error.


Instant HelpGet instant SAP help. Sign up for our Free Essentials Plan.


Related SAP Error Messages

Click the links below to see the following related messages:

Click on this link to search all SAP messages.


Rating
ERPlingo simplifies finding the accurate answers to SAP message errors. I now use every week. A must have tool for anyone working with SAP! Highly recommended!
Rate 1
Kent Bettisworth
Executive SAP Consultant