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How To Fix SWF_EVT004 - Specify a class name


SAP Error Message - Details

  • Message type: E = Error

  • Message class: SWF_EVT - Messages from Event Manager

  • Message number: 004

  • Message text: Specify a class name

  • Show details Hide details
  • What causes this issue?

    No class name specified.

    System Response

    The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

    How to fix this error?

    Specify a class name and execute the action again.

    Procedure for System Administrators


    Error message extract from SAP system. Copyright SAP SE.


Smart SAP Assistant

  • What is the cause and solution for SAP error message SWF_EVT004 - Specify a class name ?

    The SAP error message SWF_EVT004: "Specify a class name" typically occurs in the context of SAP Business Workflow when there is an issue with the configuration of a workflow event or when a class name is expected but not provided.

    Cause:

    1. Missing Class Name: The error usually indicates that a class name is required but has not been specified in the workflow configuration.
    2. Incorrect Configuration: The workflow might be incorrectly configured, leading to the system not being able to find the necessary class.
    3. Event Linkage Issues: If the event is linked to a class that does not exist or is not properly defined, this error can occur.
    4. Transport Issues: If the workflow was transported from one system to another, the class might not have been transported correctly.

    Solution:

    1. Check Workflow Configuration:

      • Go to the workflow definition in transaction SWDD (Workflow Builder).
      • Verify that all events and their associated classes are correctly defined.
      • Ensure that the class name is specified where required.
    2. Define the Class:

      • If the class is missing, you may need to create it. Use transaction SE24 (Class Builder) to define the class.
      • Ensure that the class implements the necessary methods and is activated.
    3. Event Linkage:

      • Check the event linkage in transaction SWETYPV (Event Type Linkage) to ensure that the event is correctly linked to the class.
      • Make sure that the event type is correctly defined and that it points to the right class.
    4. Transport Check:

      • If the workflow was transported, check the transport logs to ensure that all necessary objects, including classes, were included in the transport request.
      • If any objects are missing, you may need to transport them again.
    5. Testing:

      • After making the necessary changes, test the workflow to ensure that the error is resolved.

    Related Information:

    • Transaction Codes:
      • SWDD: Workflow Builder
      • SWETYPV: Event Type Linkage
      • SE24: Class Builder
    • Documentation: Refer to SAP Help documentation for detailed information on workflow configuration and event handling.
    • SAP Notes: Check for any relevant SAP Notes that might address specific issues related to this error message.

    If the problem persists after following these steps, consider reaching out to your SAP Basis or Workflow team for further assistance, as they may have more insights into the specific configuration of your SAP system.

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