How To Fix /SAPAPO/PR428 - Ex-post forecast carried out

/SAPAPO/PR428 - Overview

• Message type: E = Error

• Message class: /SAPAPO/PR -

• 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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/PR428 - Ex-post forecast carried out ?

  The SAP error message /SAPAPO/PR428 Ex-post forecast carried out typically occurs in the context of SAP Advanced Planning and Optimization (APO) when there is an attempt to perform a forecast operation that is not allowed due to the presence of an existing ex-post forecast. An ex-post forecast is a forecast that has been generated based on historical data after the fact, and it is often used for analysis and reporting purposes.
  
  Cause:
  The error is triggered when:
  
  You attempt to create or modify a forecast for a product or location where an ex-post forecast already exists.
  The system is configured to prevent overwriting or modifying existing ex-post forecasts to maintain data integrity.
  
  
  Solution:
  To resolve this error, you can consider the following approaches:
  
  
  Review Existing Forecasts: Check if there is indeed an existing ex-post forecast for the product/location in question. You can do this by navigating to the relevant forecasting transaction in SAP APO.
  
  
  Delete or Adjust the