How To Fix FL123 - Unable to delete released function modules

SAP Error Message - Details

• Message type: E = Error

• Message class: FL - Function Builder messages

• Message number: 123

• Message text: Unable to delete released function modules

What causes this issue?

You attempted to delete a function module that has already been
released. Released function modules cannot be deleted.

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?

If you want to delete a released function module, the release must
first be canceled. Only the person responsible for the function group
is authorized to do this.
Choose the appropriate function in the <LS>Utilities</> menu to to
generate a list of the function groups and the persons responsible for
them.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FL123 - Unable to delete released function modules ?

  The SAP error message FL123, which states "Unable to delete released function modules," typically occurs when you attempt to delete a function module that has been released. In SAP, function modules are reusable pieces of code that can be called from other programs or function modules. Once a function module is released, it is considered stable and should not be deleted, as it may be in use by other programs or function modules.
  Cause:
  
  Released Status: The function module you are trying to delete has been released, meaning it is in a stable state and cannot be modified or deleted.
  Dependencies: Other programs or function modules may depend on the function module you are trying to delete, which prevents its deletion.
  Transport Requests: The function module may be part of a transport request that has already been released.
  
  Solution:
  
  Check Dependencies: Before attempting to delete a function module, check if there are any dependencies. You can use transaction SE80 or SE37 to analyze where the function module is being used.
  Change Status: If you need to modify or delete the function module, you may need to change its status. This typically involves:
  
  Creating a new version of the function module (copying it) and making your changes there.
  If you are certain that the function module is no longer needed and you have the necessary authorizations, you may need to unrelease it, which usually requires a developer with the appropriate permissions.
  
  
  Transport Management: If the function module is part of a transport request, ensure that the transport request is not released. You may need to revert the transport request or create a new one for your changes.
  Consult Documentation: Review the SAP documentation or consult with your SAP Basis or development team for best practices regarding function module management.
  
  Related Information:
  
  Function Module Management: Familiarize yourself with the lifecycle of function modules in SAP, including how to create, modify, and delete them.
  SAP Notes: Check SAP Notes for any specific issues or updates related to function module management.
  Authorization: Ensure you have the necessary authorizations to perform actions on function modules, as restrictions may apply based on your role.
  
  If you continue to face issues, consider reaching out to your SAP support team or consulting the SAP community for further assistance.