How To Fix KU328 - Summarization class & & does not exist

KU328 - Overview

• Message type: E = Error

• Message class: KU - Costing: Rollup

• Message number: 328

• Message text: Summarization class & & does not exist

What causes this issue?

A system error occurred.

How to fix this error?

Please inform your system administrator or contact the SAP hotline with
details of the message.

Error message extract from SAP system. Copyright SAP SE.

KU328 - Details

• The SAP error message KU328, which states "Summarization class & & does not exist," typically occurs in the context of SAP Controlling (CO) when dealing with summarization classes in the context of cost element accounting or internal orders. This error indicates that the system is trying to reference a summarization class that has not been defined or does not exist in the system.
  
  Cause:
  
  Missing Summarization Class: The summarization class that is being referenced in the configuration or transaction does not exist in the system.
  Incorrect Configuration: There may be a misconfiguration in the settings related to cost elements, internal orders, or other controlling objects that reference summarization classes.
  Transport Issues: If the system is newly upgraded or if changes were transported from another system, the summarization class may not have been included in the transport.
  
  
  Solution:
  
  
  Check Configuration:
  
  Go to the configuration settings in SAP (Transaction code: SPRO).
  Navigate to the relevant area (e.g., Controlling -> Cost