How To Fix 1X123 - Local private structures cannot be enhanced

SAP Error Message - Details

• Message type: E = Error

• Message class: 1X - General hierarchy maintenance tool message

• Message number: 123

• Message text: Local private structures cannot be enhanced

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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Smart SAP Assistant

• What is the cause and solution for SAP error message 1X123 - Local private structures cannot be enhanced ?

  The SAP error message 1X123 ("Local private structures cannot be enhanced") typically occurs when there is an attempt to enhance a local private structure in the SAP system. Local private structures are defined within a specific program or context and are not intended to be modified or enhanced outside of that context.
  Cause:
  The error arises due to the following reasons:
  
  Local Scope: The structure is defined as local and private to a specific program or function module, meaning it cannot be accessed or modified from outside that scope.
  Enhancement Attempt: An attempt is made to enhance or modify this local structure, which is not allowed by the SAP system.
  
  Solution:
  To resolve this error, consider the following approaches:
  
  
  Avoid Enhancements: If you need to add fields or modify the structure, consider creating a new structure or using an existing global structure that can be enhanced.
  
  
  Use Global Structures: If you need to enhance a structure, ensure that you are working with a global structure that is designed for enhancements. Global structures can be enhanced using the appropriate enhancement techniques.
  
  
  Review Code: Check the code where the error occurs to ensure that you are not inadvertently trying to enhance a local structure. If you are, refactor the code to use a different structure.
  
  
  Consult Documentation: Review SAP documentation or consult with your SAP Basis or ABAP team to understand the specific context of the structure and the best practices for enhancements.
  
  
  Use BAdIs or User Exits: If you need to add functionality related to the local structure, consider using Business Add-Ins (BAdIs) or user exits that allow for extending functionality without modifying the original structure.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific guidance or updates related to this error message.
  ABAP Development Guidelines: Familiarize yourself with ABAP development guidelines regarding local and global structures, as well as enhancement techniques.
  SAP Community: Engage with the SAP Community forums for insights and solutions from other developers who may have encountered similar issues.
  
  By following these steps, you should be able to address the error message 1X123 effectively.