How To Fix AXT_MODEL_REGISTRY042 - Include structure &1 is not used

SAP Error Message - Details

• Message type: E = Error

• Message class: AXT_MODEL_REGISTRY - Messages from extensibility registry

• Message number: 042

• Message text: Include structure &1 is not used

What causes this issue?

You have entered an include structure for a place or search place that
is not included in any structure.
You have possibly forgotten to include it.

System Response

An error is displayed.

How to fix this error?

Include the enhancement structure in your application structure where
necessary.

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 AXT_MODEL_REGISTRY042 - Include structure &1 is not used ?

  The SAP error message AXT_MODEL_REGISTRY042, which states "Include structure &1 is not used," typically occurs during the development or activation of ABAP programs, function modules, or other objects that reference an include structure that is not being utilized anywhere in the code. This can happen for various reasons, such as:
  Cause:
  
  Unused Include Structure: The include structure defined in the system is not being referenced in any program, function module, or other objects.
  Code Cleanup: During code refactoring or cleanup, the include structure may have been left behind without any references.
  Development Errors: The developer may have intended to use the include structure but forgot to include it in the relevant program or module.
  
  Solution:
  
  Check References: Verify if the include structure is indeed not being used. You can do this by checking the references in the ABAP Workbench (SE80) or using transaction SE11 to see if there are any objects that reference the include.
  Remove Unused Structures: If the include structure is confirmed to be unused, consider removing it to clean up the system. This can help avoid confusion and maintain a tidy codebase.
  Update Code: If the include structure is needed, ensure that it is properly included in the relevant programs or function modules. Update the code to reference the include structure where necessary.
  Documentation: Document the purpose of the include structure and its intended use to prevent future confusion.
  
  Related Information:
  
  Transaction Codes: Use SE80 (Object Navigator) or SE11 (Data Dictionary) to explore and manage include structures.
  ABAP Development: Familiarity with ABAP programming and the structure of programs and function modules is essential for resolving this issue.
  Code Quality: Regular code reviews and clean-up processes can help identify and eliminate unused structures and improve overall code quality.
  
  If you continue to encounter issues or if the include structure is part of a larger development project, consider consulting with your development team or SAP support for further assistance.