How To Fix KPEP_WL402 - Hierarchy comparison for object type &1 not supported

SAP Error Message - Details

• Message type: E = Error

• Message class: KPEP_WL - Messages For The Worklist in The Schedule Manager

• Message number: 402

• Message text: Hierarchy comparison for object type &1 not supported

What causes this issue?

You have selected a node of type &V1& to compare its subordinate
hierarchy between the worklist and the current master data. However,
this comparison is not supported for this object type.

System Response

The comparison is not executed.

How to fix this error?

In the hierarchy, choose a superior node of another object type and
start the comparison again.
Example (project system):
The comparison is not supported for sales document items. Therefore,
choose the WBS element to which the sales document item is assigned.

Procedure for System Administrators

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 KPEP_WL402 - Hierarchy comparison for object type &1 not supported ?

  The SAP error message KPEP_WL402 indicates that there is an issue with the hierarchy comparison for a specific object type in the context of Profitability Analysis (CO-PA) or similar modules. This error typically arises when the system attempts to perform a comparison or operation on a hierarchy that is not supported for the specified object type.
  Cause:
  
  Unsupported Object Type: The object type specified in the error message is not configured to support hierarchy comparisons. This could be due to the object type not being set up correctly in the system or not being intended for hierarchical operations.
  Configuration Issues: There may be configuration settings in the SAP system that do not allow for hierarchy comparisons for the specified object type.
  Data Issues: The data being processed may not conform to the expected structure or may be missing necessary hierarchy information.
  
  Solution:
  
  Check Object Type Configuration: Verify the configuration of the object type in question. Ensure that it is set up to support hierarchy comparisons. This may involve checking the settings in the relevant customizing transactions (e.g., SPRO).
  Review Hierarchy Settings: Ensure that the hierarchy settings for the object type are correctly defined. This includes checking if the hierarchy is activated and properly structured.
  Data Validation: Check the data being used in the hierarchy comparison. Ensure that all necessary data is present and correctly formatted.
  Consult Documentation: Refer to SAP documentation or notes related to the specific object type and hierarchy comparisons to understand any limitations or requirements.
  SAP Support: If the issue persists, consider reaching out to SAP support for assistance. They may provide specific notes or patches that address the issue.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as KEB1, KEB2, or KEB3 for CO-PA settings, as well as SPRO for configuration.
  SAP Notes: Search for SAP Notes related to the error message or the specific object type to find any known issues or fixes.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to diagnose and resolve the KPEP_WL402 error in your SAP system.