How To Fix RSCV162 - Hierarchy node & of type RESTNODE is not unique

SAP Error Message - Details

• Message type: E = Error

• Message class: RSCV - Analysis of BW objects (InfoCubes...)

• Message number: 162

• Message text: Hierarchy node & of type RESTNODE is not unique

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSCV162 - Hierarchy node & of type RESTNODE is not unique ?

  The SAP error message RSCV162 indicates that there is a problem with the uniqueness of a hierarchy node in a data model, specifically for a node of type RESTNODE. This error typically arises in the context of SAP BW (Business Warehouse) or SAP HANA when dealing with hierarchies in data models or reporting structures.
  Cause:
  The error occurs when the system detects that there are multiple nodes in a hierarchy that share the same identifier or key. This can happen due to:
  
  Duplicate Entries: There may be duplicate entries in the hierarchy definition, where two or more nodes have the same ID or key.
  Incorrect Data Load: During data loading or transformation processes, data might have been incorrectly loaded, leading to duplicates.
  Hierarchy Configuration Issues: The configuration of the hierarchy might not be set up correctly, leading to conflicts in node identification.
  
  Solution:
  To resolve the RSCV162 error, you can follow these steps:
  
  
  Check Hierarchy Definition:
  
  Go to the hierarchy definition in the SAP BW or HANA model.
  Look for nodes that have the same identifier or key. Ensure that each node in the hierarchy is unique.
  
  
  
  Data Validation:
  
  Validate the data being loaded into the hierarchy. Check the source data for duplicates and ensure that the data model is designed to prevent duplicates.
  If duplicates are found, clean the data source to remove or correct the duplicate entries.
  
  
  
  Rebuild the Hierarchy:
  
  If the hierarchy is complex, consider rebuilding it from scratch to ensure that all nodes are unique and correctly defined.
  
  
  
  Check Transformation Rules:
  
  Review any transformation rules that are applied during data loading. Ensure that they are not inadvertently creating duplicates.
  
  
  
  Use SAP Tools:
  
  Utilize SAP tools such as the Data Warehousing Workbench or the HANA Studio to analyze and manage hierarchies. These tools can help identify and resolve issues related to hierarchy nodes.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or support notes related to hierarchy management and the specific error message for additional guidance.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Training and Documentation: Consider reviewing training materials or documentation on hierarchy management in SAP BW or HANA to better understand how to structure and manage hierarchies effectively.
  
  By following these steps, you should be able to identify the cause of the RSCV162 error and implement a solution to resolve it.