How To Fix WXP451 - Planning hierarchy is not defined for this planning step

SAP Error Message - Details

• Message type: E = Error

• Message class: WXP - Retail Planning

• Message number: 451

• Message text: Planning hierarchy is not defined for this planning step

What causes this issue?

You want to maintain the planning hierarchy for planning step <(>&<)>V1
<(>&<)>/<(>&<)>V2<(>&<)>.
Neither "Manual planning" nor "Automatic planning" were selected as the
planning step method for this planning method.
You cannot, therefore, maintain a planning hierarchy which is based on
plan characteristics for a planning step.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Check your entries or change the settings for your planning step. zum
Planungsschritt ab.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WXP451 - Planning hierarchy is not defined for this planning step ?

  Certainly! Here's a detailed explanation for the SAP error message WXP451: "Planning hierarchy is not defined for this planning step":
  
  Error Message:
  WXP451 - Planning hierarchy is not defined for this planning step
  
  Cause:
  This error occurs when you try to execute a planning step in SAP APO (Advanced Planning and Optimization) or SAP SCM (Supply Chain Management), but the system cannot find a planning hierarchy assigned to that particular planning step.
  
  In SAP APO, planning steps are part of the Demand Planning (DP) or Supply Network Planning (SNP) process.
  Each planning step requires a planning hierarchy to define the structure of the data aggregation and disaggregation.
  If the planning hierarchy is not assigned or incorrectly assigned to the planning step, the system throws this error.
  
  
  Where it occurs:
  
  During execution of planning steps in Demand Planning (DP) or Supply Network Planning (SNP).
  When running macros or planning sequences that rely on a defined planning hierarchy.
  In transaction /SAPAPO/SDP94 (Demand Planning: Planning Book) or /SAPAPO/SDP91 (Planning Book Maintenance) when executing planning steps.
  
  
  Solution:
  
  
  Check Planning Step Configuration:
  
  Go to transaction /SAPAPO/SDP94 or /SAPAPO/SDP91.
  Identify the planning step you are trying to execute.
  Verify if a planning hierarchy is assigned to this planning step.
  
  
  
  Assign Planning Hierarchy:
  
  Use transaction /SAPAPO/SDP94 or /SAPAPO/SDP91.
  Navigate to the planning step settings.
  Assign the correct planning hierarchy to the planning step.
  Save the changes.
  
  
  
  Verify Planning Hierarchy:
  
  Ensure the planning hierarchy itself is properly defined and active.
  Use transaction /SAPAPO/SDP94 or /SAPAPO/SDP91 to check the hierarchy.
  Make sure the hierarchy covers the relevant product/location combinations.
  
  
  
  Check Authorization:
  
  Sometimes, missing authorizations can cause the system to behave as if the hierarchy is missing.
  Verify that the user has the necessary authorizations to access the planning hierarchy.
  
  
  
  Transport and System Consistency:
  
  If this error appears after a transport or system copy, verify that the planning hierarchy and planning step assignments have been transported correctly.
  Re-assign if necessary.
  
  
  
  
  Additional Information:
  
  Planning Hierarchy: Defines the aggregation levels for planning data (e.g., product groups, locations).
  Planning Step: Represents a step in the planning sequence, such as statistical forecasting, manual planning, or macros.
  SAP Notes: Check SAP Notes for any known issues related to WXP451.
  Related Transactions:
  
  /SAPAPO/SDP94 - Demand Planning: Planning Book
  /SAPAPO/SDP91 - Planning Book Maintenance
  /SAPAPO/MC86 - Planning Hierarchy Maintenance
  
  
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Cause
  No planning hierarchy assigned to the planning step.
  
  
  Effect
  Planning step execution fails with WXP451 error.
  
  
  Solution
  Assign the correct planning hierarchy to the planning step in planning book maintenance.
  
  
  Transactions
  /SAPAPO/SDP94, /SAPAPO/SDP91, /SAPAPO/MC86
  
  
  Notes
  Verify hierarchy definition and user authorizations.
  
  
  
  
  If you need step-by-step guidance on how to assign a planning hierarchy to a planning step, please let me know!