How To Fix RSRTS_CDS191 - Derivation for default node: Invalid hierarchy node type &1

SAP Error Message - Details

• Message type: E = Error

• Message class: RSRTS_CDS - Messages Transient CDS Queries

• Message number: 191

• Message text: Derivation for default node: Invalid hierarchy node type &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSRTS_CDS191 - Derivation for default node: Invalid hierarchy node type &1 ?

  The SAP error message RSRTS_CDS191 typically occurs in the context of SAP BW (Business Warehouse) or SAP BW/4HANA when working with Composite Providers or when trying to execute queries that involve hierarchies. The error indicates that there is an issue with the hierarchy node type being used in a query or a Composite Provider.
  Cause:
  The error message "Derivation for default node: Invalid hierarchy node type &1" suggests that the system is encountering a hierarchy node type that is not valid or not recognized. This can happen due to several reasons:
  
  Incorrect Hierarchy Configuration: The hierarchy might not be properly defined or configured in the InfoObject.
  Incompatible Node Types: The query or Composite Provider may be trying to use a node type that is not compatible with the expected structure.
  Missing or Inactive Hierarchies: The hierarchy that is being referenced might be missing, inactive, or not properly activated.
  Data Model Changes: Changes in the underlying data model or InfoObjects that affect the hierarchy structure can lead to this error.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Hierarchy Configuration:
  
  Go to the relevant InfoObject and check the hierarchy settings. Ensure that the hierarchy is correctly defined and activated.
  
  
  
  Validate Node Types:
  
  Review the query or Composite Provider to ensure that the node types being used are valid and compatible with the hierarchy.
  
  
  
  Activate Hierarchies:
  
  If the hierarchy is inactive, activate it. You can do this in the hierarchy maintenance transaction (e.g., RSH1 for hierarchies).
  
  
  
  Rebuild the Query:
  
  If the issue persists, try to rebuild the query or Composite Provider to ensure that it correctly references the hierarchy.
  
  
  
  Check for Data Model Changes:
  
  If there have been recent changes to the data model, ensure that all related objects are updated and consistent.
  
  
  
  Test with Different Nodes:
  
  If possible, test the query with different nodes or hierarchy levels to identify if the issue is specific to certain nodes.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes or updates that might address this specific error.
  
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like RSH1 (Hierarchy Maintenance), RSA1 (Data Warehousing Workbench), or RSRT (Query Monitor) to investigate and resolve the issue.
  SAP Documentation: Refer to SAP Help documentation for detailed information on hierarchies and Composite Providers.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify and resolve the cause of the RSRTS_CDS191 error in your SAP BW environment.