How To Fix UJA_EXCEPTION021 - Member &2 of dimension &1 has an invalid hierarchy parent '&3'

SAP Error Message - Details

• Message type: E = Error

• Message class: UJA_EXCEPTION - BPC: Admin exception message class

• Message number: 021

• Message text: Member &2 of dimension &1 has an invalid hierarchy parent '&3'

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 UJA_EXCEPTION021 - Member &2 of dimension &1 has an invalid hierarchy parent '&3' ?

  The SAP error message UJA_EXCEPTION021 indicates that there is an issue with the hierarchy structure of a dimension in your SAP system, specifically in the context of SAP BW (Business Warehouse) or SAP BW/4HANA. This error occurs when a member (or node) of a dimension is assigned a parent that is not valid or does not exist in the hierarchy.
  Cause:
  
  Invalid Parent-Child Relationship: The member specified in the error message is trying to reference a parent node that either does not exist or is not valid within the hierarchy of the specified dimension.
  Hierarchy Configuration Issues: There may be issues with how the hierarchy is configured, such as missing nodes or incorrect settings.
  Data Load Issues: If the data is being loaded from an external source, there may be inconsistencies in the data that lead to invalid parent-child relationships.
  Changes in Hierarchy: If the hierarchy has been modified (e.g., nodes added or removed) after the member was created, it may lead to this error.
  
  Solution:
  
  Check Hierarchy Structure: Verify the hierarchy structure of the dimension in question. Ensure that the parent node specified in the error message exists and is correctly configured.
  Correct Parent Assignment: If the parent node is invalid, you may need to either change the parent of the member to a valid one or create the missing parent node in the hierarchy.
  Data Validation: If the error occurs during data loading, validate the data being loaded to ensure that all parent-child relationships are correct and that all referenced nodes exist.
  Rebuild Hierarchy: In some cases, it may be necessary to rebuild the hierarchy or refresh it to ensure that all nodes are correctly recognized by the system.
  Check for Transport Issues: If the hierarchy was transported from another system, ensure that all necessary objects were transported correctly.
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like RSA1 (Data Warehousing Workbench) to check and manage your hierarchies.
  Hierarchy Maintenance: Use the hierarchy maintenance tools available in SAP BW to view and edit the hierarchy structure.
  Documentation: Refer to SAP documentation for more details on managing hierarchies and dimensions in SAP BW.
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to this error message.
  
  By following these steps, you should be able to identify and resolve the issue causing the UJA_EXCEPTION021 error in your SAP system.