How To Fix /SCWM/MIGRATION168 - Handling unit &1 and highest-level handling unit &2 must be the same

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/MIGRATION -

• Message number: 168

• Message text: Handling unit &1 and highest-level handling unit &2 must be the same

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/MIGRATION168 - Handling unit &1 and highest-level handling unit &2 must be the same ?

  The SAP error message /SCWM/MIGRATION168 indicates that there is a mismatch between a handling unit (HU) and its highest-level handling unit. This typically occurs during processes involving handling units in the SAP Extended Warehouse Management (EWM) system, particularly during migration or data processing tasks.
  Cause:
  The error arises when the system detects that the specified handling unit (&1) does not match the highest-level handling unit (&2) in the hierarchy. This can happen due to several reasons:
  
  Data Inconsistency: There may be inconsistencies in the handling unit data, such as incorrect assignments or missing links between handling units.
  Incorrect Hierarchy: The handling unit might not be properly structured, leading to a situation where the system cannot correctly identify the parent-child relationship.
  Migration Issues: If you are migrating data from another system or an older version of SAP, the handling unit relationships may not have been correctly established.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Handling Unit Structure:
  
  Use transaction codes like /SCWM/HU to display the handling units and verify their hierarchy.
  Ensure that the handling unit (&1) is correctly assigned to the highest-level handling unit (&2).
  
  
  
  Correct Data Inconsistencies:
  
  If you find any inconsistencies, you may need to correct the handling unit assignments. This can involve reassigning handling units or creating new ones as necessary.
  
  
  
  Review Migration Process:
  
  If this error occurred during a migration, review the migration logs and processes to ensure that all handling units were migrated correctly.
  You may need to run specific migration reports or programs to fix any issues related to handling unit relationships.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to handling units and migration processes for additional guidance and best practices.
  
  
  
  Contact SAP Support:
  
  If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance. Provide them with detailed information about the error and the context in which it occurred.
  
  
  
  Related Information:
  
  Handling Units in EWM: Understanding how handling units work in SAP EWM is crucial. Handling units can be nested, and the system maintains a hierarchy that must be respected.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as /SCWM/HU, /SCWM/PR, and others that can help you manage handling units.
  SAP Notes: Check for any SAP Notes related to handling units and migration issues, as they may provide specific fixes or recommendations.
  
  By following these steps, you should be able to identify and resolve the issue related to the error message /SCWM/MIGRATION168.