How To Fix CDS_UNIT_MESSAGE029 - Hierarchy testing of &1 is not possible.

SAP Error Message - Details

• Message type: E = Error

• Message class: CDS_UNIT_MESSAGE - Message Class

• Message number: 029

• Message text: Hierarchy testing of &1 is not possible.

Since a test double already created for &V2& as part of &V3& testing of
&V4&.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CDS_UNIT_MESSAGE029 - Hierarchy testing of &1 is not possible. ?

  The SAP error message CDS_UNIT_MESSAGE029 ("Hierarchy testing of &1 is not possible") typically occurs in the context of Core Data Services (CDS) views when there is an issue related to the hierarchy structure of the data being queried or tested. This error can arise in various scenarios, such as when trying to execute a hierarchy-related query or when testing a CDS view that involves hierarchical data.
  Causes:
  
  Missing Hierarchy Definition: The hierarchy for the specified object (e.g., a characteristic or dimension) may not be defined or activated in the system.
  Incorrect Hierarchy Node: The hierarchy node being referenced may not exist or may not be valid for the given context.
  Data Inconsistencies: There may be inconsistencies in the underlying data that prevent the hierarchy from being processed correctly.
  Authorization Issues: The user may not have the necessary authorizations to access the hierarchy data.
  Technical Issues: There could be technical issues with the CDS view or the underlying data model.
  
  Solutions:
  
  Check Hierarchy Definition: Ensure that the hierarchy for the specified object is correctly defined and activated in the system. You can do this by navigating to the relevant hierarchy maintenance transaction (e.g., RSH1 for hierarchy maintenance).
  Validate Hierarchy Nodes: Verify that the hierarchy nodes being referenced in your query or CDS view are valid and exist in the hierarchy structure.
  Review Data Consistency: Check the underlying data for any inconsistencies that might affect the hierarchy. This may involve running consistency checks or validating the data in the relevant tables.
  Check Authorizations: Ensure that the user executing the query has the necessary authorizations to access the hierarchy data. This may involve checking roles and authorizations in the user profile.
  Debugging: If the issue persists, consider debugging the CDS view or the associated ABAP code to identify any technical issues that may be causing the error.
  Consult Documentation: Review SAP documentation or notes related to the specific CDS view or hierarchy functionality for any known issues or additional troubleshooting steps.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error message or provide additional guidance.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  CDS View Documentation: Review the documentation for the specific CDS view you are working with to understand its structure and any dependencies it may have.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.