How To Fix CDS_UNIT_MESSAGE015 - Error in loading CDS hierarchy for '&1'.

SAP Error Message - Details

• Message type: E = Error

• Message class: CDS_UNIT_MESSAGE - Message Class

• Message number: 015

• Message text: Error in loading CDS hierarchy for '&1'.

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.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CDS_UNIT_MESSAGE015 - Error in loading CDS hierarchy for '&1'. ?

  The SAP error message CDS_UNIT_MESSAGE015 indicates that there is an issue with loading a Core Data Services (CDS) hierarchy for a specified entity (represented by &1). This error can occur in various scenarios, such as when trying to access a CDS view that relies on a hierarchy structure.
  Possible Causes:
  
  Missing Hierarchy Definition: The hierarchy that the CDS view is trying to access may not be defined or may be missing in the system.
  Authorization Issues: The user may not have the necessary authorizations to access the hierarchy data.
  Data Inconsistencies: There may be inconsistencies or issues with the underlying data that the hierarchy is based on.
  Transport Issues: If the CDS view or its dependencies were recently transported, there may be issues with the transport not being complete or not being activated properly.
  Incorrect Configuration: The configuration settings for the hierarchy might be incorrect or incomplete.
  
  Solutions:
  
  Check Hierarchy Definition: Verify that the hierarchy is correctly defined in the system. You can do this by checking the relevant hierarchy settings in the SAP GUI or using transaction codes like RSH1 (for hierarchy maintenance).
  Review Authorizations: Ensure that the user has the necessary authorizations to access the hierarchy. You can check this using transaction SU53 after the error occurs to see if there are any authorization issues.
  Data Consistency Check: Perform a consistency check on the underlying data to ensure that there are no issues. This may involve checking the relevant tables or using transaction codes like SE11 to inspect the data model.
  Transport Check: If the issue arose after a transport, ensure that all necessary objects were transported and activated correctly. You may need to re-transport or activate the objects.
  Configuration Review: Review the configuration settings related to the hierarchy and ensure that they are set up correctly. This may involve checking the settings in the relevant customizing transactions.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. You can search for the error message number or keywords in the SAP Support Portal.
  CDS Documentation: Review the official SAP documentation on Core Data Services to understand how hierarchies are defined and used.
  Debugging: If you have access to debugging tools, you can debug the CDS view to identify where the error is occurring in the code.
  
  If the issue persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance, providing them with detailed information about the error and the context in which it occurs.