How To Fix CNV_10020279 - Multiple path &1: Spec. function module &2 has wrong interface

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_10020 - Message class for package 10020

• Message number: 279

• Message text: Multiple path &1: Spec. function module &2 has wrong interface

What causes this issue?

Specific function module &V2& has been stored for specific control of
multiple path &V1&. However the interface is not defined correctly.

How to fix this error?

Correct the interface definition of function module &V2&. <ZH>Note that
it must be EXACTLY the same as for sample function module &V3&</>,
because internally the call is explicitly included in the coding.
<ZH>Note:</> The program for checking the interface definition compares
the definition for function module &V2& with the one for sample
function module &V3&. This is also why the interface parameters have to
have exactly the same names.
The best solution is to copy function module &V3& to the function
module you want to use.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_10020279 - Multiple path &1: Spec. function module &2 has wrong interface ?

  The SAP error message CNV_10020279 indicates that there is an issue with a specific function module in the context of a data conversion or migration process. This error typically arises when the function module being called has an interface that does not match the expected parameters or structure required by the calling program or process.
  Cause:
  
  Mismatch in Function Module Interface: The function module specified in the error message has a different number of parameters, or the types of parameters do not match what is expected.
  Versioning Issues: If the function module has been modified or updated, it may have changed its interface, leading to incompatibility with the calling program.
  Configuration Issues: Incorrect configuration settings or missing dependencies can also lead to this error.
  Multiple Paths: The error mentions "Multiple path," which suggests that there may be multiple instances or versions of the function module being referenced, leading to confusion in the execution.
  
  Solution:
  
  
  Check Function Module Interface: 
  
  Go to transaction SE37 (Function Builder) and check the interface of the function module specified in the error message. Ensure that it matches the expected parameters in the calling program.
  
  
  
  Update or Correct the Calling Program: 
  
  If the function module has been updated, you may need to update the calling program to match the new interface.
  If the calling program is incorrect, modify it to ensure it calls the function module with the correct parameters.
  
  
  
  Review Configuration: 
  
  Check any related configuration settings that might affect the function module's execution. Ensure that all necessary settings are correctly configured.
  
  
  
  Check for Multiple Versions: 
  
  If there are multiple versions of the function module, ensure that the correct one is being called. You may need to adjust the program logic to ensure it references the right version.
  
  
  
  Consult Documentation: 
  
  Review any relevant documentation or release notes for the function module to understand any changes that may have been made.
  
  
  
  Testing: 
  
  After making changes, thoroughly test the program to ensure that the error is resolved and that the function module behaves as expected.
  
  
  
  Related Information:
  
  Transaction Codes: SE37 (Function Builder), SE80 (Object Navigator), ST22 (Dump Analysis) can be useful for debugging.
  SAP Notes: Check SAP Notes for any known issues or patches related to the function module or the migration process you are working on.
  Debugging: If the issue persists, consider using the debugger to step through the code and identify where the mismatch occurs.
  
  If you continue to experience issues after following these steps, it may be beneficial to reach out to SAP support or consult with a technical expert familiar with your specific SAP environment.