How To Fix CNV_PE_GEN019 - Generation of function module interface (IF) failed

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_PE_GEN - Messages for object generation

• Message number: 019

• Message text: Generation of function module interface (IF) failed

What causes this issue?

Trying to generate the interface object for function module <ZH>&V1&</>
failed.

System Response

The generator function reported error <ZH>&V2&</><ZH>.</>

How to fix this error?

Try to execute the activity again. If the error still persists, contact
SAP for support.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_PE_GEN019 - Generation of function module interface (IF) failed ?

  The SAP error message CNV_PE_GEN019 indicates that there was a failure in generating the function module interface (IF) during a conversion or migration process, typically related to the SAP Data Migration or Conversion tools. This error can occur in various scenarios, such as during the execution of a conversion program or when trying to generate a function module for a specific data migration task.
  Causes:
  
  Syntax Errors: There may be syntax errors in the ABAP code or in the data structures being used.
  Missing Objects: Required objects (like tables, structures, or data elements) may be missing or not properly defined in the system.
  Authorization Issues: The user executing the process may not have the necessary authorizations to create or modify function modules.
  Inconsistent Data: The data being processed may be inconsistent or not conforming to the expected format.
  System Configuration: There may be issues with the system configuration or settings that prevent the generation of the function module.
  
  Solutions:
  
  Check Syntax: Review the ABAP code and data structures for any syntax errors. Use the ABAP Editor (SE38) to check for errors.
  Verify Objects: Ensure that all required objects (tables, structures, etc.) are present and correctly defined in the system.
  Review Authorizations: Check the user authorizations to ensure that the user has the necessary permissions to execute the conversion or migration tasks.
  Data Validation: Validate the data being processed to ensure it meets the expected format and consistency requirements.
  Check Logs: Review the application logs (transaction SLG1) for more detailed error messages that can provide additional context on the failure.
  Re-run the Process: After addressing the above issues, try re-running the conversion or migration process to see if the error persists.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE80 (Object Navigator), SE37 (Function Builder), and SLG1 (Application Log).
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide guidance on similar issues.
  Documentation: Review the documentation for the specific migration or conversion tool you are using, as it may contain troubleshooting steps or best practices.
  Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance, providing them with detailed information about the error and the context in which it occurred.
  
  By following these steps, you should be able to identify the cause of the CNV_PE_GEN019 error and implement a solution to resolve it.