How To Fix OO672 - The class include structure cannot be changed by transaction SNOTE/SCWB.

SAP Error Message - Details

• Message type: E = Error

• Message class: OO - Class Builder/API

• Message number: 672

• Message text: The class include structure cannot be changed by transaction SNOTE/SCWB.

What causes this issue?

You have tried to change the class Include structure (local class types)
using the Note Assistant or the Correction Workbench. This operation is
not supported.

System Response

The Note Assistant or the Correction Workbench shows a red traffic light
for the class.

How to fix this error?

Implement note number 830204 in your system and manually convert the
class Include structure in Transaction SE24. For this purpose, use the
menu entry "Utilities -> Convert Local Class Types".

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message OO672 - The class include structure cannot be changed by transaction SNOTE/SCWB. ?

  The SAP error message OO672 indicates that there is an attempt to change a class include structure using transactions SNOTE (for applying SAP Notes) or SCWB (for the Class Builder). This error typically arises when you are trying to modify a class that is part of a standard SAP delivery, which is not allowed through these transactions.
  Cause:
  
  Standard SAP Classes: The class you are trying to modify is a standard SAP class, and SAP restricts changes to these classes to maintain system integrity and ensure compatibility with future updates.
  Modification Restrictions: The system has built-in restrictions that prevent changes to certain structures or classes to avoid issues with system stability and upgrades.
  
  Solution:
  
  Avoid Direct Modifications: Instead of modifying the standard class directly, consider creating a Z-class (custom class) that extends or uses the standard class. This way, you can implement your custom logic without affecting the standard SAP code.
  Use Enhancement Framework: If you need to add functionality, consider using the SAP Enhancement Framework (e.g., BAdIs, user exits) to implement your changes in a way that is compliant with SAP's guidelines.
  Check for Notes: If you are trying to apply a note that requires changes to a class, check if there are alternative notes or methods provided by SAP that do not involve direct modifications to standard classes.
  Consult SAP Documentation: Review the SAP documentation or the specific note you are trying to implement for any prerequisites or alternative solutions.
  
  Related Information:
  
  SAP Notes: Always check the SAP Support Portal for any relevant notes that might address your specific issue or provide guidance on how to implement changes without violating the restrictions.
  Custom Development: When developing custom solutions, ensure that you follow best practices for SAP development to avoid future issues during upgrades or patches.
  Testing: After implementing any changes, thoroughly test your custom classes to ensure they work as expected and do not interfere with standard SAP functionality.
  
  If you continue to face issues or need specific guidance, consider reaching out to SAP support or consulting with an experienced SAP developer.