How To Fix /SAPAPO/TSM391 - Key Figure &1: Invalid property 'History Not Changeable'

/SAPAPO/TSM391 - Overview

• Message type: E = Error

• Message class: /SAPAPO/TSM -

• Message number: 391

• Message text: Key Figure &1: Invalid property 'History Not Changeable'

Self-Explanatory Message

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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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/TSM391 - Key Figure &1: Invalid property 'History Not Changeable' ?

  The SAP error message /SAPAPO/TSM391 Key Figure &1: Invalid property 'History Not Changeable' typically occurs in the context of SAP Advanced Planning and Optimization (APO) when there is an issue with the configuration of a key figure in the planning area. This error indicates that the key figure in question has been set to a property that does not allow historical data to be changed, but an attempt is being made to modify it.
  
  Cause:
  
  Key Figure Configuration: The key figure is configured with the property "History Not Changeable," which means that once historical data is recorded, it cannot be altered. This is often used for key figures that represent actual historical data, such as sales or production figures.
  Data Update Attempt: An attempt is being made to update or change historical data for this key figure, which is not allowed due to its configuration.
  
  
  Solution:
  
  
  Review Key Figure Settings: Check the configuration of the