How To Fix PR428 - Ex-post forecast carried out

PR428 - Overview

• Message type: E = Error

• Message class: PR - Forecast: Help messages

• Message number: 428

• Message text: Ex-post forecast carried out

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 PR428 - Ex-post forecast carried out ?

  The SAP error message PR428 "Ex-post forecast carried out" typically occurs in the context of demand planning and forecasting within the SAP system, particularly in the SAP Advanced Planning and Optimization (APO) module or SAP Integrated Business Planning (IBP). This message indicates that an ex-post forecast has been executed, which means that the system has generated a forecast based on historical data rather than a predictive model.
  
  Cause:
  
  Historical Data Usage: The error usually arises when the system attempts to generate a forecast using historical data that has already been processed or when the forecast is being recalculated without the necessary adjustments.
  
  Configuration Issues: There may be issues with the configuration of the forecasting model or parameters that lead to the system treating the forecast as an ex-post calculation.
  Data Integrity: Inconsistencies or issues with the underlying data can also trigger this message, especially if the historical data is not aligned with the current