How To Fix WG128 - Error in document during item change. Document: &1

SAP Error Message - Details

• Message type: E = Error

• Message class: WG - Messages for store order and investment buy

• Message number: 128

• Message text: Error in document during item change. Document: &1

Self-Explanatory Message

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• What is the cause and solution for SAP error message WG128 - Error in document during item change. Document: &1 ?

  SAP Error Message:
  
  WG128 - Error in document during item change. Document: &1
  
  Cause:
  The error message WG128 typically occurs in the Warehouse Management (WM) module of SAP when there is an inconsistency or problem during the change of an inventory document item. This can happen due to:
  
  Attempting to change a document item that is locked or already processed.
  Data inconsistencies between the Warehouse Management (WM) and Inventory Management (IM) modules.
  The document or item is in a status that does not allow changes (e.g., already posted or confirmed).
  Missing or incorrect data in the document item fields.
  Custom enhancements or user exits that cause validation failures during item changes.
  System inconsistencies or incomplete document updates.
  
  
  Solution:
  To resolve the WG128 error, follow these steps:
  
  
  Check Document Status:
  
  Verify the status of the document and the item you are trying to change.
  Ensure the document is not already posted or locked.
  Use transaction codes like LX03 (Display WM document) or MB03 (Display Material Document) to check document status.
  
  
  
  Verify Data Consistency:
  
  Check if the data in the WM document matches the corresponding IM document.
  Look for any inconsistencies in quantities, storage locations, or material numbers.
  
  
  
  Review Change Process:
  
  Ensure that the change you are trying to make is allowed by the business process and system configuration.
  Some fields or items may be restricted from changes once certain steps are completed.
  
  
  
  Check for Locks:
  
  Use transaction SM12 to check if the document or related entries are locked by another user or process.
  If locked, wait for the lock to be released or coordinate with the user/process holding the lock.
  
  
  
  Analyze Custom Code:
  
  If there are user exits, BADIs, or enhancements related to WM document processing, review them for errors or validation logic that might cause the failure.
  
  
  
  Reprocess or Correct Document:
  
  If the document is inconsistent, consider reversing or canceling the document and creating a new one.
  Use transaction LT22 to display transfer orders and check for inconsistencies.
  
  
  
  SAP Notes and Support:
  
  Search for SAP Notes related to WG128 for any known bugs or patches.
  If the problem persists, raise a support ticket with SAP including detailed logs and document numbers.
  
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  LX03 - Display Warehouse Management Document
  MB03 - Display Material Document
  LT22 - Display Transfer Order
  SM12 - Display and Delete Locks
  
  
  
  Modules Involved:
  
  Warehouse Management (WM)
  Inventory Management (IM)
  
  
  
  Common Scenarios:
  
  Changing quantities or storage bins in WM documents.
  Adjusting transfer orders or warehouse tasks.
  Synchronization issues between WM and IM.
  
  
  
  SAP Notes:
  
  Check SAP Service Marketplace for notes related to WG128 or document change errors in WM.
  
  
  
  
  Summary:
  
  The WG128 error indicates a problem when changing an item in a warehouse management document, often due to status restrictions, data inconsistencies, or locks. Verify document status, check for locks, ensure data consistency, and review any custom code or enhancements. If necessary, consult SAP Notes or support for further assistance.