How To Fix /SAPAPO/PDEM200 - This change requires a reconstruction of demand history and forecast

/SAPAPO/PDEM200 - Overview

• Message type: E = Error

• Message class: /SAPAPO/PDEM -

• Message number: 200

• Message text: This change requires a reconstruction of demand history and forecast

Self-Explanatory Message

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/SAPAPO/PDEM200 - Details

• The SAP error message /SAPAPO/PDEM200 indicates that a change has been made that necessitates a reconstruction of the demand history and forecast in the SAP Advanced Planning and Optimization (APO) module. This typically occurs when there are modifications to key parameters or settings that affect how demand is calculated or forecasted.
  
  Cause:
  The error can be triggered by several factors, including but not limited to:
  
  Changes in Forecasting Parameters: Adjustments to the forecasting model, such as changing the forecast method or parameters.
  Changes in Demand History: Modifications to historical data that impact how future demand is predicted.
  Master Data Changes: Alterations in master data (like product master, location master, etc.) that affect demand planning.
  Time Series Changes: Adjustments in the time series data that require recalibration of the forecast.
  
  
  Solution:
  To resolve this error, you typically need to perform the following steps:
  
  
  Reconstruct Demand History:
  
  Navigate to the demand planning area in SAP APO.
  Use the transaction code /SAPAPO/DP to access