How To Fix CNV_10020458 - Form routine &1(&2) has already been turned back into coding again

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_10020 - Message class for package 10020

• Message number: 458

• Message text: Form routine &1(&2) has already been turned back 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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_10020458 - Form routine &1(&2) has already been turned back into coding again ?

  The SAP error message CNV_10020458 typically occurs during the execution of a conversion program, particularly in the context of data migration or transformation processes. This error indicates that a form routine (a specific piece of code or function) has been reverted to its original coding state, which can happen for various reasons during the execution of a conversion program.
  Cause:
  
  Re-Execution of Code: The error suggests that the form routine has been executed multiple times, and the system is trying to revert it back to its original state. This can happen if the routine is called again after it has already been processed.
  Data Consistency Issues: If there are inconsistencies in the data being processed, the routine may not be able to complete successfully, leading to a rollback.
  Configuration Issues: Incorrect configuration settings in the conversion program or related components can lead to this error.
  Program Logic Errors: There may be logical errors in the code of the form routine itself, causing it to fail and revert.
  
  Solution:
  
  Check Execution Logic: Review the logic of the conversion program to ensure that the form routine is not being called multiple times unnecessarily. Ensure that the routine is designed to handle re-execution gracefully.
  Data Validation: Validate the data being processed to ensure that it meets the expected criteria. Look for any inconsistencies or errors in the data that could cause the routine to fail.
  Debugging: Use debugging tools to step through the execution of the conversion program and identify where the error occurs. This can help pinpoint the exact cause of the issue.
  Review Configuration: Check the configuration settings related to the conversion program and ensure they are set up correctly.
  Consult Documentation: Refer to SAP documentation or notes related to the specific conversion program you are using. There may be known issues or patches available that address this error.
  Seek Support: If the issue persists, consider reaching out to SAP support or consulting with an SAP expert who can provide more tailored assistance based on your specific environment and configuration.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error message or provide guidance on similar issues.
  Transaction Codes: Familiarize yourself with transaction codes related to data migration and conversion, such as LTMC (Legacy Transfer Migration Cockpit) or LTMOM (Migration Object Modeler).
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to diagnose and resolve the error CNV_10020458 effectively.