How To Fix AH458 - Please specify the pre-sorting key &2 in schema step &1

AH458 - Overview

• Message type: E = Error

• Message class: AH - IS-U billing (master data)

• Message number: 458

• Message text: Please specify the pre-sorting key &2 in schema step &1

What causes this issue?

The presorting key &V2& is not maintained in schema step &V1&.

System Response

The schema cannot be saved
The schema cannot be released for billing

How to fix this error?

Enter the required data.

Error message extract from SAP system. Copyright SAP SE.

AH458 - Details

• The SAP error message AH458, which states "Please specify the pre-sorting key &2 in schema step &1," typically occurs in the context of the SAP Advanced Planning and Optimization (APO) module, particularly when dealing with the configuration of the planning process.
  
  Cause:
  This error usually arises when a pre-sorting key is not defined for a specific schema step in the planning process. The pre-sorting key is essential for determining how data should be sorted before it is processed in the planning run. If the system expects a pre-sorting key to be specified for a particular step but it is missing, this error will be triggered.
  
  Solution:
  To resolve this error, you need to specify the pre-sorting key in the relevant schema step. Here are the steps to do this:
  
  
  Access the Schema Configuration:
  
  Go to the transaction code /SAPAPO/SDP94 or navigate through the SAP menu to the relevant configuration area for your planning process.
  
  
  
  Locate the Schema