How To Fix IWO_BAPI201 - Internal error: SUMNR for suboperation &1/&2 cannot be determined for &3

SAP Error Message - Details

• Message type: E = Error

• Message class: IWO_BAPI - BAPIs for ALM Orders: Messages

• Message number: 201

• Message text: Internal error: SUMNR for suboperation &1/&2 cannot be determined for &3

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message IWO_BAPI201 - Internal error: SUMNR for suboperation &1/&2 cannot be determined for &3 ?

  The SAP error message "IWO_BAPI201 Internal error: SUMNR for suboperation &1/&2 cannot be determined for &3" typically occurs in the context of work order processing, particularly when dealing with suboperations in maintenance orders or production orders. This error indicates that the system is unable to determine the sequence number (SUMNR) for a specified suboperation.
  Causes:
  
  Missing Configuration: The suboperation may not be properly configured in the system, leading to the inability to retrieve the sequence number.
  Data Inconsistencies: There may be inconsistencies or missing data in the order or operation records that prevent the system from determining the SUMNR.
  Custom Enhancements: If there are custom enhancements or modifications in the BAPI or related processes, they might interfere with the standard logic.
  Incorrect Input Data: The input data provided to the BAPI might be incorrect or incomplete, leading to the inability to find the required SUMNR.
  
  Solutions:
  
  Check Configuration: Ensure that the suboperations are correctly configured in the system. This includes checking the operation details in the order and ensuring that all necessary fields are filled out.
  Validate Input Data: Review the input data being passed to the BAPI. Ensure that the suboperation and order details are correct and complete.
  Review Custom Code: If there are any custom enhancements or modifications, review them to ensure they are not causing the issue. You may need to debug the BAPI to identify where the error occurs.
  Check for Data Consistency: Use transaction codes like IW38 or IW32 to check the work order and its operations for any inconsistencies. Ensure that all required data is present and correct.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error. There may be patches or updates that resolve known issues.
  Consult Documentation: Review the documentation for the BAPI being used to ensure that all required parameters are being passed correctly.
  
  Related Information:
  
  BAPI Documentation: Familiarize yourself with the BAPI documentation for BAPI_ALM_ORDER_MAINTAIN or any other relevant BAPI you are using.
  Transaction Codes: Use transaction codes like IW31 (Create Order), IW32 (Change Order), and IW38 (Display Order) to manage and review work orders.
  Debugging: If you have access, consider debugging the BAPI call to trace the execution and identify where the error occurs.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to your SAP support team or consult with an SAP expert for further assistance.