How To Fix OH015 - Invalid change to the hierarchy structure

SAP Error Message - Details

• Message type: E = Error

• Message class: OH - Messages Group Maintenance

• Message number: 015

• Message text: Invalid change to the hierarchy structure

What causes this issue?

You want to change the hierarchy structure in a way that is not
allowed:
reassign a node to itself (recursion)
reassign a node to a node that contains values/intervals
reassign a value/interval to a node that is not an end node
reassign a value under a value
insert a node under a node that contains values
insert a node at top node level
insert a data set under a single set or basic set

System Response

The function is not executed.

How to fix this error?

Only make allowed changes to hierarchies.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message OH015 - Invalid change to the hierarchy structure ?

  The SAP error message OH015 "Invalid change to the hierarchy structure" typically occurs when there is an attempt to make an invalid modification to a hierarchy in the SAP system, particularly in the context of Organizational Management (OM) or other hierarchical structures.
  Causes:
  
  Invalid Node Changes: Attempting to change a node in a way that violates the hierarchy rules, such as moving a node to a parent that is not valid.
  Inconsistent Data: The hierarchy may have inconsistencies, such as circular references or missing parent nodes.
  Authorization Issues: The user may not have the necessary permissions to make changes to the hierarchy.
  Locked Objects: The object being modified may be locked by another user or process, preventing changes.
  Incorrect Data Entry: Inputting incorrect or incomplete data when trying to modify the hierarchy.
  
  Solutions:
  
  Check Hierarchy Structure: Review the current hierarchy structure to ensure that the changes you are trying to make are valid. Ensure that the parent-child relationships are logical and do not create cycles.
  Validate Data: Ensure that all required fields are filled out correctly and that the data being entered adheres to the expected formats and values.
  Authorization Check: Verify that you have the necessary authorizations to make changes to the hierarchy. If not, contact your system administrator to obtain the required permissions.
  Unlock Objects: If the object is locked, check with other users or system administrators to unlock it or wait until the lock is released.
  Use Transaction Codes: Utilize transaction codes like PPOME (for Organizational Management) to visualize and manage the hierarchy effectively. This can help identify issues more easily.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on managing hierarchies in your version of SAP.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as PPOME, PPOC, or PPOE for managing organizational structures.
  SAP Notes: Check SAP Notes for any known issues or patches related to hierarchy management that may address the error.
  Support: If the issue persists, consider reaching out to SAP support or your internal IT support team for further assistance.
  
  By following these steps, you should be able to identify the cause of the OH015 error and implement a solution to resolve it.