How To Fix KG401 - Forecast period must be contained within planning period

KG401 - Overview

• Message type: E = Error

• Message class: KG - CO-PA Planning

• Message number: 401

• Message text: Forecast period must be contained within planning period

What causes this issue?

The forecast period must fall within the planning period &V1& to &V2&.

System Response

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

How to fix this error?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message KG401 - Forecast period must be contained within planning period ?

  The SAP error message KG401, which states "Forecast period must be contained within planning period," typically occurs in the context of planning and forecasting in SAP, particularly when using the SAP Controlling (CO) module or SAP Integrated Business Planning (IBP). This error indicates that the forecast period you are trying to use does not fall within the defined planning period.
  
  Cause:
  
  Mismatch in Dates: The forecast period you are trying to enter or use is outside the range of the defined planning period. For example, if your planning period is set from January to December, and you try to enter a forecast for the following January, you will encounter this error.
  Incorrect Configuration: The planning period may not be correctly configured in the system, leading to discrepancies between the forecast and planning periods.
  Data Entry Error: There may be a simple mistake in the dates entered for the forecast period.
  
  
  Solution:
  
  
  Check Planning Period: Verify the