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

SAP Error Message - Details

• 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.

Smart SAP Assistant

• What is the cause and solution for SAP error message AH458 - Please specify the pre-sorting key &2 in schema step &1 ?

  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 Step:
  
  Find the schema step indicated in the error message (denoted as &1). This will typically involve navigating through the planning schema configuration.
  
  
  
  Specify the Pre-Sorting Key:
  
  In the configuration for the identified schema step, look for the field where you can specify the pre-sorting key (denoted as &2). Enter the appropriate pre-sorting key that aligns with your planning requirements.
  
  
  
  Save the Changes:
  
  After entering the pre-sorting key, save your changes to the schema configuration.
  
  
  
  Re-run the Planning Process:
  
  Once the pre-sorting key is specified, re-run the planning process to see if the error is resolved.
  
  
  
  Related Information:
  
  Pre-Sorting Key: This is a key that determines the order in which data is processed in the planning run. It can significantly impact the performance and results of the planning process.
  Schema Steps: These are individual steps in the planning process that define how data is processed, including calculations, aggregations, and other operations.
  Documentation: Refer to SAP documentation or help resources for more detailed information on configuring planning schemas and understanding pre-sorting keys.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP Basis or APO functional team for further investigation, as there may be additional configuration or data issues at play.