How To Fix K6120 - Lead column '&1' may not contain a hierarchy.

SAP Error Message - Details

• Message type: E = Error

• Message class: K6 - EC-EIS/EC-BP data basis: Data entry and collection

• Message number: 120

• Message text: Lead column '&1' may not contain a hierarchy.

What causes this issue?

You wish to use a hierarchy for a compound characteristic. The
independent characteristic, that will be part of the hierarchy, is also
contained in a lead column.

System Response

The entries are not valid.

How to fix this error?

Either do not use a hierarchy, or take the independent characteristic
from the lead column into the general selections.

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 K6120 - Lead column '&1' may not contain a hierarchy. ?

  The SAP error message K6120, which states "Lead column '&1' may not contain a hierarchy," typically occurs in the context of SAP Controlling (CO) when working with reports or queries that involve hierarchies in the data structure. This error indicates that the lead column specified in your report or query is not allowed to contain a hierarchy.
  Cause:
  
  Hierarchical Structure: The lead column in a report or query is expected to contain a flat structure of data (e.g., cost centers, profit centers) rather than a hierarchical structure (e.g., a hierarchy of cost centers).
  Configuration Issues: The configuration of the report or query may not be set up to handle hierarchies correctly.
  Data Model: The data model being used may not support hierarchies in the lead column.
  
  Solution:
  
  Change Lead Column: Modify the report or query to use a different lead column that does not contain a hierarchy. Ensure that the selected lead column is appropriate for the type of data being analyzed.
  Check Report Settings: Review the settings of the report or query to ensure that it is configured correctly. Look for options that allow or disallow hierarchies in lead columns.
  Use Flat Data: If you need to use a hierarchy, consider restructuring your data or using a different approach that allows for hierarchical data representation without violating the lead column requirement.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on how to configure reports and queries involving hierarchies.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context on handling hierarchies in reports.
  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 related to SAP Controlling and reporting to better understand how to work with hierarchies and lead columns.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP support team or a technical consultant who can provide more tailored assistance based on your specific SAP environment and configuration.