How To Fix AXT_MODEL_REGISTRY003 - Inheriting or enhancing an enhancement is not permitted

SAP Error Message - Details

• Message type: E = Error

• Message class: AXT_MODEL_REGISTRY - Messages from extensibility registry

• Message number: 003

• Message text: Inheriting or enhancing an enhancement is not permitted

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.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message AXT_MODEL_REGISTRY003 - Inheriting or enhancing an enhancement is not permitted ?

  The SAP error message AXT_MODEL_REGISTRY003, which states "Inheriting or enhancing an enhancement is not permitted," typically occurs in the context of SAP's enhancement framework. This error indicates that there is an attempt to inherit or enhance an enhancement implementation that is not allowed by the system's design.
  Cause:
  
  Enhancement Restrictions: The enhancement you are trying to inherit from or enhance may have been defined in such a way that it does not allow further modifications or enhancements. This is often the case with certain standard enhancements provided by SAP.
  Incorrect Implementation: You might be trying to implement an enhancement in a way that is not supported by the system, such as trying to create a subclass of an enhancement that is not designed for inheritance.
  System Configuration: The system may have specific configurations or restrictions that prevent certain enhancements from being inherited or modified.
  
  Solution:
  
  Check Enhancement Documentation: Review the documentation for the enhancement you are trying to use. Ensure that it is designed to be inherited or enhanced. If it is not, you will need to find an alternative approach.
  Use Alternative Enhancements: If the enhancement you are trying to use does not allow inheritance or enhancement, look for other enhancements that provide similar functionality and do allow for modifications.
  Review Your Implementation: Ensure that your implementation code does not attempt to inherit or enhance an enhancement that is not designed for it. Adjust your implementation accordingly.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error or provide guidance on how to handle it.
  Contact SAP Support: If you are unable to resolve the issue, consider reaching out to SAP Support for assistance. They can provide insights based on the specific context of your implementation.
  
  Related Information:
  
  Enhancement Framework: Familiarize yourself with the SAP enhancement framework, which allows developers to add custom functionality to standard SAP applications without modifying the original code.
  ABAP Development: Understanding ABAP (Advanced Business Application Programming) and its object-oriented features can help you navigate enhancements and their limitations.
  SAP Community: Engage with the SAP Community forums where other developers may have encountered similar issues and can share their solutions or workarounds.
  
  By following these steps, you should be able to address the AXT_MODEL_REGISTRY003 error and proceed with your development work in SAP.