How To Fix CNV_10020457 - Function module &1 has already been turned into coding again

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_10020 - Message class for package 10020

• Message number: 457

• Message text: Function module &1 has already been turned into coding again

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_10020457 - Function module &1 has already been turned into coding again ?

  The SAP error message CNV_10020457, which states "Function module &1 has already been turned into coding again," typically occurs during the conversion or migration processes in SAP systems, particularly when using the SAP Conversion Tools or during system upgrades.
  Cause:
  This error usually indicates that there is an attempt to reprocess or re-activate a function module that has already been processed. This can happen due to:
  
  Duplicate Processing: The function module has already been converted or activated, and the system is trying to do it again.
  Inconsistent State: The system might be in an inconsistent state where it thinks the function module needs to be processed again.
  Configuration Issues: There may be issues with the configuration or setup of the conversion tools or the migration process.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check the Status: Verify the status of the function module in question. You can do this by checking the transaction SE37 (Function Builder) to see if the function module is active and correctly implemented.
  
  
  Review Logs: Look at the logs generated during the conversion or migration process. This can provide insights into what might have gone wrong and why the system is trying to process the function module again.
  
  
  Re-run the Conversion: If the function module is in a consistent state, you may try to re-run the conversion or migration process. Ensure that you are following the correct sequence of steps as outlined in the SAP documentation.
  
  
  Check for Notes: Search the SAP Notes database for any relevant notes related to this error message. SAP frequently releases notes that address specific issues encountered during migrations or upgrades.
  
  
  Consult Documentation: Review the documentation for the specific conversion or migration tool you are using. There may be specific instructions or prerequisites that need to be followed.
  
  
  Contact SAP Support: If the issue persists and you cannot find a resolution, consider reaching out to SAP Support for assistance. Provide them with the error message, context, and any logs you have collected.
  
  
  Related Information:
  
  Transaction Codes: SE37 (Function Builder), SLG1 (Application Log), ST22 (Dump Analysis).
  SAP Notes: Always check for relevant SAP Notes that may provide fixes or workarounds for specific issues.
  Documentation: Review the official SAP documentation for the conversion or migration tools you are using, as they often contain troubleshooting sections.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution.