How To Fix W_DFE026 - Define requirement calculation data for package &1 with &2 items

SAP Error Message - Details

• Message type: E = Error

• Message class: W_DFE - Messages for Function Group WDFE

• Message number: 026

• Message text: Define requirement calculation data for package &1 with &2 items

Self-Explanatory Message

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• What is the cause and solution for SAP error message W_DFE026 - Define requirement calculation data for package &1 with &2 items ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  W_DFE026: Define requirement calculation data for package &1 with &2 items
  
  Cause:
  This warning message occurs during the Demand Forecasting process in SAP (specifically in the Demand Planning or Demand Forecasting module). It indicates that the system requires you to define the requirement calculation data for a particular package (identified by &1) which contains &2 items.
  In other words, the system is informing you that for the package you are trying to process, the necessary data or parameters for requirement calculation have not been defined or are incomplete. Without this data, the system cannot proceed with the demand forecast calculation for the items in that package.
  
  When does it occur?
  
  When you try to run a demand forecast calculation for a package of materials.
  The package does not have the requirement calculation data set up.
  This data typically includes parameters like forecast model, planning horizon, aggregation level, etc.
  
  
  Solution:
  To resolve this warning, you need to define the requirement calculation data for the package in question. This involves:
  
  
  Access the Demand Forecasting Workbench:
  
  Transaction code: /SAPAPO/DF94 (or the relevant transaction in your SAP APO system).
  
  
  
  Define or Maintain Requirement Calculation Data:
  
  Navigate to the section where you can maintain requirement calculation data for packages.
  Enter the package ID (&1) mentioned in the message.
  Specify the necessary parameters such as:
  
  Forecast model (e.g., Moving Average, Exponential Smoothing)
  Planning horizon (start and end dates)
  Aggregation level (e.g., product, location)
  Other relevant settings depending on your forecasting scenario.
  
  
  
  
  
  Save the settings.
  
  
  Re-run the demand forecast calculation.
  
  
  
  Additional Information:
  
  Packages in SAP Demand Forecasting are groups of products/materials that are processed together.
  Requirement calculation data is essential for the system to know how to calculate the forecast for the items.
  If you are unsure about the parameters to set, consult your demand planning team or refer to your organization's forecasting methodology.
  This message is a warning (W_), so it may not stop the process entirely but indicates that the forecast may not be calculated correctly or completely.
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Message ID
  W_DFE026
  
  
  Cause
  Requirement calculation data missing for package &1 with &2 items
  
  
  Solution
  Define requirement calculation data for the package in the Demand Forecasting workbench
  
  
  Transaction
  /SAPAPO/DF94 (or relevant Demand Forecasting transaction)
  
  
  Impact
  Forecast calculation may be incomplete or incorrect without this data
  
  
  
  
  If you need further help, please provide details about your SAP system version and the exact process you are running.