How To Fix /SAPAPO/OM_TS139 - Key figure is read-only

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/OM_TS -

• Message number: 139

• Message text: Key figure is read-only

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/OM_TS139 - Key figure is read-only ?

  The SAP error message /SAPAPO/OM_TS139 Key figure is read-only typically occurs in the context of SAP Advanced Planning and Optimization (APO) when you attempt to modify a key figure that is defined as read-only in the system. This can happen in various scenarios, such as during planning, data entry, or when trying to update a planning book.
  Cause:
  
  Key Figure Configuration: The key figure you are trying to modify is configured as read-only in the planning book or data view. This is often done to prevent changes to certain key figures that are calculated or derived from other data.
  Planning Book Settings: The settings of the planning book may restrict changes to specific key figures based on the planning process or business logic.
  Data Source: The key figure may be sourced from a data source that does not allow modifications, such as a key figure that is derived from a planning function or a data extraction process.
  
  Solution:
  
  Check Key Figure Settings: Review the configuration of the key figure in the planning book. You can do this by navigating to the planning book settings in the SAP APO system. Ensure that the key figure is not set to read-only if you need to make changes.
  Modify Planning Book: If you need to change the key figure's status, you may need to adjust the planning book settings or create a new planning book that allows for modifications to that key figure.
  Use Alternative Key Figures: If the key figure is inherently read-only due to its nature (e.g., calculated key figures), consider using alternative key figures that are editable for your planning needs.
  Consult Documentation: Refer to the SAP documentation or help resources for specific guidance on the key figure in question and its intended use within the planning process.
  Authorization Check: Ensure that you have the necessary authorizations to modify the data in the planning book. Sometimes, user roles and permissions can restrict access to certain key figures.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context on key figure configurations.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Training and Documentation: Consider reviewing training materials or documentation related to SAP APO and planning book configuration to better understand how key figures are managed.
  
  If the issue persists after checking these aspects, it may be beneficial to consult with your SAP Basis or APO functional team for further investigation and support.