How To Fix RSRTS_CDS198 - Element hierarchy parent will be ignored: unknown alias &1

SAP Error Message - Details

• Message type: E = Error

• Message class: RSRTS_CDS - Messages Transient CDS Queries

• Message number: 198

• Message text: Element hierarchy parent will be ignored: unknown alias &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSRTS_CDS198 - Element hierarchy parent will be ignored: unknown alias &1 ?

  The SAP error message RSRTS_CDS198 indicates that there is an issue with a hierarchy in a Core Data Services (CDS) view, specifically related to an unknown alias for a parent element in the hierarchy. This typically occurs when the system cannot find the specified alias for a parent node in the hierarchy structure.
  Cause:
  
  Missing Alias: The alias specified for the parent element in the hierarchy is not defined or is incorrect.
  Incorrect Hierarchy Definition: The hierarchy may not be properly defined in the CDS view or the underlying data model.
  Data Model Changes: Changes in the underlying data model or the CDS view that have not been reflected in the hierarchy definition.
  Transport Issues: If the CDS view or related objects were transported from one system to another, there may be inconsistencies.
  
  Solution:
  
  Check Alias Definition: Verify that the alias for the parent element is correctly defined in the CDS view. Ensure that it matches the expected name.
  Review Hierarchy Structure: Ensure that the hierarchy is correctly defined and that all parent-child relationships are properly established.
  Update CDS View: If there have been changes to the underlying data model, update the CDS view accordingly to reflect those changes.
  Rebuild the Hierarchy: If necessary, rebuild the hierarchy in the CDS view to ensure that all elements are correctly linked.
  Check Transport Logs: If the issue arose after a transport, check the transport logs for any errors or warnings that might indicate what went wrong.
  Test in Development: If possible, test the changes in a development environment before moving to production to ensure that the issue is resolved.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance.
  Documentation: Review the SAP documentation for CDS views and hierarchies to ensure compliance with best practices.
  Community Forums: Consider searching or posting in SAP community forums for additional insights from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or ABAP team for further investigation.