How To Fix /SCWM/TW_WT023 - HU &1 passed twice. Second entry is ignored

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/TW_WT -

• Message number: 023

• Message text: HU &1 passed twice. Second entry is ignored

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/TW_WT023 - HU &1 passed twice. Second entry is ignored ?

  The SAP error message /SCWM/TW_WT023 HU &1 passed twice. Second entry is ignored typically occurs in the context of handling units (HUs) in the Extended Warehouse Management (EWM) module of SAP. This error indicates that a handling unit (identified by &1) has been passed to the system more than once during a process, and the system is ignoring the second entry to prevent duplication.
  Cause:
  
  
  Duplicate Handling Unit Entry: The most common cause of this error is that the same handling unit is being processed multiple times in a single transaction or operation. This can happen if:
  
  The handling unit is scanned or entered more than once.
  There is a programming or configuration issue that causes the system to attempt to process the same HU multiple times.
  
  
  
  User Error: Users may inadvertently scan or input the same HU multiple times during a process, such as during goods receipt, picking, or packing.
  
  
  System Configuration: There may be issues with the configuration of the warehouse processes that allow for duplicate entries.
  
  
  Solution:
  
  
  Check for Duplicate Entries: Review the transaction or process where the error occurred to ensure that the handling unit is not being scanned or entered multiple times. If it is, correct the input.
  
  
  Review Process Flow: Ensure that the process flow is designed to prevent duplicate entries. This may involve training users on proper scanning techniques or modifying the process to include checks for existing HUs.
  
  
  System Configuration: If the issue persists, review the configuration settings in EWM related to handling units and warehouse processes. Ensure that there are no settings that allow for duplicate processing of HUs.
  
  
  Error Handling: Implement error handling in the application logic to manage cases where a duplicate HU is detected. This could involve notifying the user or logging the incident for further investigation.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to handling units and the specific error message for additional insights or updates that may address the issue.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  EWM Documentation: Review the SAP EWM documentation for best practices on handling units and warehouse processes.
  User Training: Consider providing additional training for users on how to properly handle HUs to minimize the risk of duplicate entries.
  
  If the problem continues after following these steps, it may be beneficial to engage with SAP support or a consultant who specializes in EWM for further assistance.