How To Fix CX239 - Function cannot be released - check function module interface

SAP Error Message - Details

• Message type: E = Error

• Message class: CX - Nachrichten für Konfigurationsprozess

• Message number: 239

• Message text: Function cannot be released - check function module interface

What causes this issue?

The function cannot be released. Please check whether the following
entries for the interface are correctly maintained.
Import parameters interface:
Parameter,,Ref. field/structure
GLOBALS,,CUOV_00
Table interface:
Parameter,,Ref. structure
MATCH,,CUOV_01
QUERY,,CUOV_01
Exceptions:
FAIL
INTERNAL_ERROR
Do not enter any other import parameters or table parameters that are
not optional.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CX239 - Function cannot be released - check function module interface ?

  The SAP error message CX239, which states "Function cannot be released - check function module interface," typically occurs when there are issues with the interface of a function module in SAP. This error can arise during various operations, such as when trying to activate or release a function module.
  Causes:
  
  
  Inconsistent Interface: The parameters defined in the function module interface may not match the expected types or structures. This can happen if there are changes in the data types or if the parameters are not properly defined.
  
  
  Missing Parameters: If required parameters are missing from the function module interface, it can lead to this error.
  
  
  Incorrect Data Types: If the data types of the parameters do not match the expected types, it can cause the function module to be non-releasable.
  
  
  Transport Issues: If the function module is part of a transport request and there are inconsistencies in the transport, it may lead to this error.
  
  
  Syntax Errors: Any syntax errors in the function module code can prevent it from being released.
  
  
  Solutions:
  
  
  Check Function Module Interface: Go to the function module in transaction SE37 or SE80 and check the interface. Ensure that all parameters are correctly defined, including their types and attributes.
  
  
  Correct Data Types: Make sure that the data types of the parameters are correct and consistent with what is expected.
  
  
  Add Missing Parameters: If any required parameters are missing, add them to the function module interface.
  
  
  Review Syntax: Check the function module code for any syntax errors. Use the syntax check feature in the ABAP editor to identify and correct any issues.
  
  
  Transport Request: If the function module is part of a transport request, ensure that the transport is correctly configured and that there are no inconsistencies.
  
  
  Re-activate the Function Module: After making the necessary corrections, try to re-activate the function module. This can sometimes resolve the issue.
  
  
  Check Dependencies: Ensure that any dependent objects (like data elements, domains, or other function modules) are also correctly defined and activated.
  
  
  Related Information:
  
  Transaction Codes: Use SE37 (Function Builder) to view and edit function modules, and SE80 (Object Navigator) for a broader view of related objects.
  Documentation: Review SAP documentation or help files for specific guidelines on function module interfaces.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  If the issue persists after following these steps, it may be beneficial to consult with a more experienced ABAP developer or SAP Basis administrator for further assistance.