How To Fix /SAPAPO/PFCS_MESS401 - Change of period indicator is not allowed

/SAPAPO/PFCS_MESS401 - Overview

• Message type: E = Error

• Message class: /SAPAPO/PFCS_MESS -

• Message number: 401

• Message text: Change of period indicator is not allowed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/PFCS_MESS401 - Change of period indicator is not allowed ?

  The SAP error message /SAPAPO/PFCS_MESS401 with the description "Change of period indicator is not allowed" typically occurs in the context of SAP Advanced Planning and Optimization (APO) when there is an attempt to change the period indicator of a planning object or data that is not permitted.
  
  Cause:
  
  Period Indicator Restrictions: The error usually arises when a user tries to change the period indicator (e.g., from monthly to weekly) for a planning object that has already been processed or has existing data associated with it.
  Data Integrity: SAP enforces certain rules to maintain data integrity and consistency. Changing the period indicator can lead to inconsistencies in planning data, which is why the system restricts such changes.
  Planning Version: The error may also occur if the planning version is locked or if there are specific settings in the planning area that prevent changes to the period indicator.
  
  
  Solution:
  
  Check Planning Object: Verify if the planning object you