How To Fix /RPM/CONFIGURATION026 - Field &1 is a derived field; you cannot set read only to false

SAP Error Message - Details

• Message type: E = Error

• Message class: /RPM/CONFIGURATION -

• Message number: 026

• Message text: Field &1 is a derived field; you cannot set read only to false

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /RPM/CONFIGURATION026 - Field &1 is a derived field; you cannot set read only to false ?

  The SAP error message /RPM/CONFIGURATION026 Field &1 is a derived field; you cannot set read only to false typically occurs in the context of SAP's Resource and Portfolio Management (RPM) module. This error indicates that you are trying to modify the properties of a derived field, specifically attempting to change its read-only status to false, which is not allowed.
  Cause:
  
  Derived Field: The field in question is a derived field, meaning its value is calculated based on other fields or data rather than being directly input by the user. Derived fields are inherently read-only because they are meant to reflect calculated data.
  Configuration Attempt: The error arises when there is an attempt to configure the field in a way that contradicts its nature as a derived field, such as trying to make it editable.
  
  Solution:
  
  Review Field Configuration: Check the configuration settings for the field in question. Ensure that you are not trying to change the read-only property of a derived field.
  Understand Field Purpose: Recognize that derived fields are designed to provide calculated values. If you need to allow user input, consider using a different field that is not derived.
  Consult Documentation: Refer to SAP documentation or help resources for guidance on how to work with derived fields and their configurations.
  Adjust Business Logic: If the business requirement necessitates user input, you may need to adjust the business logic or data model to accommodate this without violating the constraints of derived fields.
  
  Related Information:
  
  Derived Fields: These fields are often used in scenarios where data needs to be aggregated or calculated based on other inputs. Understanding how these fields are populated can help in troubleshooting.
  SAP Notes and Support: If the issue persists or if you need more specific guidance, consider checking SAP Notes or reaching out to SAP support for assistance.
  Testing Changes: After making any configuration changes, ensure to test the changes in a development or test environment before applying them to production.
  
  By following these steps, you should be able to resolve the error and understand the limitations associated with derived fields in SAP.