How To Fix OO252 - Attribute &1 &2: Invalid value in field "Read-only" (ATTRDONLY)

SAP Error Message - Details

• Message type: E = Error

• Message class: OO - Class Builder/API

• Message number: 252

• Message text: Attribute &1 &2: Invalid value in field "Read-only" (ATTRDONLY)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message OO252 - Attribute &1 &2: Invalid value in field "Read-only" (ATTRDONLY) ?

  The SAP error message OO252 indicates that there is an issue with an attribute in the context of object-oriented programming within SAP, specifically related to the "Read-only" field (ATTRDONLY). This error typically arises when an attempt is made to assign a value to an attribute that is defined as read-only.
  Cause:
  
  Read-Only Attribute: The attribute in question is defined as read-only in the class definition. This means that it cannot be modified after it has been initialized.
  Incorrect Value Assignment: The code is trying to assign a value to this read-only attribute, which is not allowed.
  Misconfiguration: There may be a misunderstanding in the design of the class or the intended use of the attribute.
  
  Solution:
  
  Check Attribute Definition: Review the class definition to confirm that the attribute is indeed marked as read-only. This can be done in the Class Builder (transaction SE24).
  Modify Code Logic: Ensure that your code does not attempt to assign a value to this attribute after it has been initialized. If you need to change the value, consider redesigning the attribute to allow for modification or use a different approach to achieve the desired functionality.
  Initialization: If the attribute needs to be set, ensure that it is done during the initialization phase of the object (e.g., in the constructor method).
  Consult Documentation: Review the documentation for the class and the specific attribute to understand its intended use and constraints.
  
  Related Information:
  
  Object-Oriented Programming in ABAP: Understanding the principles of object-oriented programming in ABAP can help in designing classes and attributes correctly.
  SAP Community and Forums: Engaging with the SAP community can provide insights and solutions from other developers who may have encountered similar issues.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context.
  
  By following these steps, you should be able to resolve the OO252 error and ensure that your code adheres to the constraints of the defined attributes.