How To Fix MSG_UH123 - Values &1 and &2 are duplicated in the hierarchy. Check and correct them.

SAP Error Message - Details

• Message type: E = Error

• Message class: MSG_UH - Universal Hierarchy Message Class

• Message number: 123

• Message text: Values &1 and &2 are duplicated in the hierarchy. Check and correct them.

Self-Explanatory Message

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To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message MSG_UH123 - Values &1 and &2 are duplicated in the hierarchy. Check and correct them. ?

  The SAP error message MSG_UH123 indicates that there are duplicate values in a hierarchy structure, which can occur in various contexts, such as when working with master data, organizational structures, or reporting hierarchies. The message specifies that the values represented by placeholders &1 and &2 are duplicated, meaning that the system has detected two entries that should be unique within the hierarchy.
  Cause:
  
  Duplicate Entries: The most common cause is that the same value has been entered more than once in the hierarchy. This could happen due to data entry errors or incorrect data imports.
  Incorrect Hierarchy Configuration: If the hierarchy is not set up correctly, it may allow for duplicate entries.
  Data Migration Issues: During data migration or integration processes, duplicates may be introduced if the source data is not properly cleansed.
  
  Solution:
  
  Identify Duplicates: Use transaction codes like SE16 or SE11 to check the relevant tables for the entries corresponding to the values &1 and &2. This will help you identify where the duplicates are located.
  Correct the Data: Once you have identified the duplicates, you can either:
  
  Delete one of the duplicate entries if it is not needed.
  Merge the entries if they represent the same entity but have been entered differently.
  Update the entries to ensure that they are unique.
  
  
  Check Hierarchy Configuration: Review the hierarchy settings to ensure that it is configured to prevent duplicates in the future.
  Data Validation: Implement data validation rules during data entry or migration to prevent duplicates from being created.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE16 (Data Browser), SE11 (Data Dictionary), or specific transaction codes related to the module you are working with (e.g., HR, MM, SD).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP Notes can provide additional context or solutions.
  Documentation: Review SAP documentation related to the specific module you are working with to understand how hierarchies are managed and any best practices for maintaining data integrity.
  
  By following these steps, you should be able to resolve the MSG_UH123 error and ensure that your hierarchy is free of duplicates.