How To Fix HPC027 - Hierarchy type &1 is being used in hierarchy &2

SAP Error Message - Details

• Message type: E = Error

• Message class: HPC - Classification-Based Product Hierarchy

• Message number: 027

• Message text: Hierarchy type &1 is being used in hierarchy &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message HPC027 - Hierarchy type &1 is being used in hierarchy &2 ?

  The SAP error message HPC027 indicates that a specific hierarchy type is currently in use within a hierarchy, which prevents certain operations from being performed on it. This error typically arises in the context of SAP's Hierarchy Management, often related to the use of hierarchical data structures in various modules such as SAP Controlling (CO) or SAP Project System (PS).
  Cause:
  The error occurs when you attempt to delete, modify, or perform an operation on a hierarchy type that is actively being used in a hierarchy. This can happen if:
  
  You are trying to delete or change a hierarchy type that is still linked to existing hierarchies.
  There are dependencies or references to the hierarchy type in other parts of the system.
  
  Solution:
  To resolve the HPC027 error, you can follow these steps:
  
  
  Identify the Hierarchy: Check which hierarchy (identified by &2 in the error message) is using the hierarchy type (identified by &1). You can do this by navigating to the hierarchy management area in SAP.
  
  
  Review Usage: Determine where the hierarchy is being used. This may involve checking reports, transactions, or other configurations that reference the hierarchy.
  
  
  Remove Dependencies: If you need to delete or modify the hierarchy type, you must first remove any dependencies. This may involve:
  
  Deleting or deactivating the hierarchy that is using the hierarchy type.
  Changing the configuration or settings that reference the hierarchy.
  
  
  
  Check for Active Processes: Ensure that there are no active processes or transactions that are currently using the hierarchy. This may include running reports or ongoing planning activities.
  
  
  Consult Documentation: If you are unsure about the implications of removing or modifying the hierarchy, consult SAP documentation or your organization's SAP support team for guidance.
  
  
  Test Changes: After making the necessary changes, test to ensure that the hierarchy type can now be modified or deleted without triggering the error.
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like HIERARCHY, HIERARCHY_DISPLAY, or HIERARCHY_MAINTAIN to manage hierarchies.
  SAP Notes: Check SAP Notes for any known issues or additional guidance related to the HPC027 error.
  User Roles: Ensure that you have the necessary authorizations to make changes to hierarchies and hierarchy types.
  
  If the problem persists after following these steps, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.