How To Fix M3462 - Forecast model requires a weighting group to be entered

M3462 - Overview

• Message type: E = Error

• Message class: M3 - Material Master

• Message number: 462

• Message text: Forecast model requires a weighting group to be entered

What causes this issue?

You have chosen a forecast model that requires a weighting group to
calculate forecast values.

How to fix this error?

Enter a weighting group.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message M3462 - Forecast model requires a weighting group to be entered ?

  The SAP error message M3462, which states "Forecast model requires a weighting group to be entered," typically occurs in the context of demand planning and forecasting within SAP's Advanced Planning and Optimization (APO) module or similar functionalities in SAP ERP systems. This error indicates that a required parameter for the forecasting model has not been provided.
  
  Cause:
  The error arises when you attempt to execute a forecast using a model that requires a weighting group, but the system does not have a weighting group specified for the forecast. Weighting groups are used in forecasting to apply different weights to historical data points, which can influence the forecast outcome.
  
  Solution:
  To resolve this error, you need to ensure that a weighting group is specified in the forecast model you are using. Here are the steps to do this:
  
  
  Check the Forecast Model Configuration:
  
  Go to the transaction code for maintaining forecast models (e.g., /SAPAPO/MC90 for APO).
  Select the