How To Fix CME_DTYPE051 - Node & of the value hierarchy occurs more than once

SAP Error Message - Details

• Message type: E = Error

• Message class: CME_DTYPE - CME Data Type: Checks

• Message number: 051

• Message text: Node & of the value hierarchy occurs more than once

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CME_DTYPE051 - Node & of the value hierarchy occurs more than once ?

  The SAP error message CME_DTYPE051 indicates that a node in a value hierarchy is being referenced more than once, which is not allowed. This typically occurs in the context of master data management, particularly when dealing with characteristics and their values in SAP systems like SAP BW (Business Warehouse) or SAP MDG (Master Data Governance).
  Cause:
  The error is caused by:
  
  Duplicate Entries: The same node (or characteristic value) is being defined multiple times within the same hierarchy.
  Incorrect Hierarchy Structure: The hierarchy structure may not be properly defined, leading to the same node being referenced in multiple places.
  Data Import Issues: If data is being imported from an external source, it may contain duplicates that violate the hierarchy constraints.
  
  Solution:
  To resolve the CME_DTYPE051 error, you can take the following steps:
  
  
  Check Hierarchy Definition:
  
  Review the hierarchy definition in the SAP system to ensure that each node is unique.
  Ensure that no node is being defined more than once.
  
  
  
  Identify Duplicates:
  
  Use transaction codes like RSH1 (for InfoObjects) or RSH2 (for hierarchies) to check for duplicate entries in the hierarchy.
  If you are using a data import process, check the source data for duplicates.
  
  
  
  Correct the Data:
  
  If duplicates are found, remove or correct them in the hierarchy definition or the source data.
  Ensure that the data being imported adheres to the hierarchy structure.
  
  
  
  Rebuild the Hierarchy:
  
  If necessary, you may need to delete and recreate the hierarchy to ensure it is correctly structured without duplicates.
  
  
  
  Test Changes:
  
  After making corrections, test the changes to ensure that the error no longer occurs.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSH1, RSH2, and RSH3 for managing hierarchies.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Documentation: Review SAP documentation on value hierarchies and characteristics to understand the expected structure and constraints.
  
  By following these steps, you should be able to identify and resolve the cause of the CME_DTYPE051 error in your SAP system.