How To Fix FL024 - Interface has been changed but remains compatible

SAP Error Message - Details

• Message type: E = Error

• Message class: FL - Function Builder messages

• Message number: 024

• Message text: Interface has been changed but remains compatible

What causes this issue?

You extended the interface of a function module for which test data
exists. The test data is still readable.

System Response

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

How to fix this error?

Check whether the test data is still valid, and delete it if necessary.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FL024 - Interface has been changed but remains compatible ?

  The SAP error message FL024, which states "Interface has been changed but remains compatible," typically occurs when there is a change in the interface of a function module, method, or class that is still compatible with previous versions. This message is primarily informational and indicates that while the interface has been modified, it should not break existing functionality.
  Cause:
  
  
  Interface Changes: The interface of a function module or method has been altered. This could involve changes such as:
  
  Adding new parameters.
  Changing the data type of existing parameters.
  Modifying the documentation of the interface.
  
  
  
  Compatibility: Despite the changes, the interface remains compatible with existing calls, meaning that existing programs or function calls should still work without any issues.
  
  
  Solution:
  
  
  Review Changes: Check the change log or documentation for the specific function module or method to understand what changes were made. This can help you determine if any adjustments are needed in your code.
  
  
  Testing: Conduct thorough testing of the affected functionality to ensure that everything works as expected. Pay particular attention to any new parameters that may have been added.
  
  
  Update Code: If necessary, update your code to utilize any new parameters or features introduced in the interface. This may involve modifying function calls or adjusting how data is passed to the function.
  
  
  Consult Documentation: Refer to SAP notes or documentation related to the specific function module or method for any additional guidance or recommendations.
  
  
  Ignore if No Impact: If the changes do not impact your current implementation and everything is functioning correctly, you may choose to ignore the message as it is primarily informational.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional context or solutions related to the specific function module or method.
  Version Control: If you are working in a development environment, consider using version control to track changes and ensure that you can revert to a previous state if necessary.
  SAP Community: Engage with the SAP Community or forums to see if other users have encountered similar issues and what solutions they have found.
  
  In summary, the FL024 message is a warning about interface changes that are compatible. It is essential to review the changes, test your code, and make any necessary adjustments to ensure continued functionality.