How To Fix WFCS100 - Valid fiscal year variant &1 missing for posting period. &2 &3 &4

WFCS100 - Overview

• Message type: E = Error

• Message class: WFCS - Message Class for Store Forecasting (Dev. Package WFCS)

• Message number: 100

• Message text: Valid fiscal year variant &1 missing for posting period. &2 &3 &4

What causes this issue?

You are trying to carry out a forecast for some material/plant
combinations using posting periods. However, the system was unable to
find the posting periods needed to create the forecast.

System Response

The system could not carry out the forecast for the material/plant
combinations concerned.

How to fix this error?

Check the master data and the Customizing settings for the posting
periods. Repeat the forecast run.

Error message extract from SAP system. Copyright SAP SE.

WFCS100 - Details

• Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WFCS100 Valid fiscal year variant &1 missing for posting period. &2 &3 &4
  
  Meaning / 
  Cause:
  This error occurs in SAP Workflow when the system tries to determine the valid fiscal year variant for a given posting period but cannot find a valid fiscal year variant assigned or configured for that posting period.
  
  &1 = Fiscal year variant (missing or not found)
  &2, &3, &4 = Additional details such as company code, posting period, or other relevant data depending on the context
  
  The fiscal year variant defines the fiscal year structure (number of posting periods, special periods, start and end dates) for a company code. If the workflow or posting process tries to access a posting period that is not valid or not assigned to any fiscal year variant, this error is triggered.
  
  Common Causes:
  
  
  Missing or incorrect assignment of fiscal year variant to company code
  The