How To Fix /SAPAPO/PR402 - Forecast values will be negative

/SAPAPO/PR402 - Overview

• Message type: E = Error

• Message class: /SAPAPO/PR -

• Message number: 402

• Message text: Forecast values will be negative

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/PR402 - Forecast values will be negative ?

  The SAP error message /SAPAPO/PR402 Forecast values will be negative typically occurs in the SAP Advanced Planning and Optimization (APO) module when the system attempts to generate a forecast that results in negative values. This can happen for various reasons, including issues with historical data, configuration settings, or the forecasting model being used.
  Causes:
  
  Negative Historical Data: If the historical data used for forecasting contains negative values, it can lead to negative forecast values.
  Inappropriate Forecasting Model: The selected forecasting model may not be suitable for the data, especially if it is not designed to handle negative values.
  Data Input Errors: Incorrect or erroneous data entries in the master data or transaction data can lead to negative forecasts.
  Seasonality and Trends: If the data has strong seasonal patterns or trends that are not properly accounted for, it may result in negative forecasts.
  
  Configuration Issues: Incorrect settings in the forecasting profile or parameters can lead to inappropriate