How To Fix HPC045 - Objects assigned to class &1 exist; cannot change hierarchy type &2

SAP Error Message - Details

• Message type: E = Error

• Message class: HPC - Classification-Based Product Hierarchy

• Message number: 045

• Message text: Objects assigned to class &1 exist; cannot change hierarchy type &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message HPC045 - Objects assigned to class &1 exist; cannot change hierarchy type &2 ?

  The SAP error message HPC045 indicates that there are objects assigned to a specific class, and as a result, you cannot change the hierarchy type associated with that class. This error typically arises in the context of SAP's Hierarchy Management, particularly when dealing with classifications and object assignments.
  
  Cause:
  The error occurs when you attempt to change the hierarchy type of a class that already has objects (such as materials, documents, or other entities) assigned to it. The system prevents this change to maintain data integrity, as changing the hierarchy type could affect how those objects are organized and accessed.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Identify Assigned Objects: 
  
  Use transaction codes like SE11 (Data Dictionary) or SE16 (Data Browser) to check which objects are assigned to the class in question. You can look for the class in the Class Hierarchy or Object Assignment tables.
  
  
  
  Remove Object Assignments:
  
  If you determine that you