How To Fix CNV20308012 - Error in comparison program in line &3: &1

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV20308 - SLO CWB Package Comparison

• Message number: 012

• Message text: Error in comparison program in line &3: &1

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV20308012 - Error in comparison program in line &3: &1 ?

  The SAP error message CNV20308012 typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates that there is an issue in the comparison program, which is likely related to data validation or transformation logic.
  Cause:
  
  Data Inconsistency: The error may arise due to inconsistencies in the data being processed. This could be due to missing values, incorrect data types, or data that does not meet the expected format.
  Configuration Issues: There may be issues with the configuration of the migration or conversion program, such as incorrect mapping of fields or parameters.
  Program Logic Errors: There could be a bug or logical error in the comparison program itself, which is causing it to fail at a specific line of code.
  Data Volume: Large volumes of data being processed at once can sometimes lead to performance issues or timeouts, resulting in errors.
  
  Solution:
  
  Check Data Quality: Review the data being migrated for any inconsistencies or errors. Ensure that all required fields are populated and that the data types match the expected formats.
  Review Configuration: Verify the configuration settings of the migration tool. Ensure that all mappings and parameters are correctly set up.
  Debugging: If you have access to the source code or logs, consider debugging the comparison program to identify the specific line of code that is causing the error. This may require the assistance of a developer or SAP support.
  Reduce Data Volume: If possible, try processing smaller batches of data to see if the error persists. This can help isolate the issue.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes or patches that may address this specific error. SAP frequently releases updates that fix known issues.
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP Support for assistance. Provide them with detailed information about the error, including the context in which it occurred and any relevant logs.
  
  Related Information:
  
  SAP Migration Cockpit: Familiarize yourself with the SAP Migration Cockpit and its documentation, as it provides guidelines on how to properly configure and execute data migrations.
  Data Migration Best Practices: Review best practices for data migration in SAP, which can help prevent common issues and ensure a smoother migration process.
  Error Logs: Always check the error logs generated during the migration process for additional context and details about the error.
  
  By following these steps, you should be able to identify and resolve the CNV20308012 error effectively.