How To Fix /SCWM/HUFUNCTIONS184 - HU item does not exist or was referred to twice

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/HUFUNCTIONS -

• Message number: 184

• Message text: HU item does not exist or was referred to twice

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/HUFUNCTIONS184 - HU item does not exist or was referred to twice ?

  The SAP error message /SCWM/HUFUNCTIONS184 indicates that there is an issue with handling unit (HU) items in the SAP Extended Warehouse Management (EWM) system. Specifically, the error message states that the HU item does not exist or has been referred to twice. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause
  
  
  Non-Existent HU Item: The handling unit (HU) you are trying to reference may not exist in the system. This could be due to a typo in the HU number or the HU not being created or saved properly.
  
  
  Duplicate Reference: The HU item may have been referenced multiple times in the same transaction or process, which is not allowed. This can happen if the same HU is being processed in parallel sessions or if there is a programming error in custom code.
  
  
  Data Consistency Issues: There may be inconsistencies in the database, such as missing entries or corruption, which can lead to the system not being able to find the HU.
  
  
  Solution
  
  
  Verify HU Existence: Check if the HU exists in the system. You can do this by using transaction codes like /SCWM/HU or /SCWM/PR to search for the HU number. Ensure that the HU is correctly created and active.
  
  
  Check for Duplicates: Review the process to ensure that the HU is not being referenced multiple times. If you are using custom programs or enhancements, check the logic to ensure that it does not attempt to process the same HU more than once.
  
  
  Database Consistency Check: If you suspect data consistency issues, you may need to run consistency checks or consult with your SAP Basis team to ensure that the database is in a healthy state.
  
  
  Review Logs and Traces: Check the application logs and system traces for any additional error messages or warnings that could provide more context about the issue.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to handling units in EWM for any specific guidelines or known issues.
  
  
  Contact SAP Support: If the issue persists and you cannot find a resolution, consider reaching out to SAP support for assistance. Provide them with the error message details and any relevant transaction logs.
  
  
  Related Information
  
  Transaction Codes: Familiarize yourself with relevant transaction codes in EWM, such as /SCWM/HU for handling unit management and /SCWM/PR for processing requests.
  SAP Notes: Search for SAP Notes related to handling units and the specific error message for any patches or updates that may address the issue.
  EWM Configuration: Review your EWM configuration settings related to handling units to ensure they are set up correctly.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.