How To Fix CNV20305705 - Entry for &1-&2 with routine &3 was inserted in CNVFIELDS

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV20305 - Messages for conversion packages in CO

• Message number: 705

• Message text: Entry for &1-&2 with routine &3 was inserted in CNVFIELDS

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV20305705 - Entry for &1-&2 with routine &3 was inserted in CNVFIELDS ?

  The SAP error message CNV20305705 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 with the data mapping or transformation rules defined in the migration project.
  Cause:
  The error message CNV20305705 suggests that there is an entry for a specific field (denoted by &1 and &2) that has been inserted into the CNVFIELDS table with a specific routine (denoted by &3). This usually happens when:
  
  Data Mapping Issues: The source data does not match the expected format or structure defined in the target system.
  Transformation Logic: The routine specified may not be correctly defined or may not handle the data as expected.
  Missing Configuration: There may be missing configuration settings or parameters that are required for the migration process.
  Data Quality Issues: The source data may contain invalid or unexpected values that cannot be processed by the migration routine.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check the CNVFIELDS Table: Review the entries in the CNVFIELDS table to understand what data is being inserted and why. Look for any anomalies or unexpected values.
  
  
  Review the Migration Configuration: Ensure that the migration configuration is set up correctly. Check the mapping of fields between the source and target systems and ensure that all required fields are included.
  
  
  Examine the Routine: Investigate the routine specified in the error message. Ensure that it is correctly implemented and can handle the data being processed. If necessary, modify the routine to accommodate the data.
  
  
  Data Validation: Validate the source data for any inconsistencies or errors. Cleanse the data if necessary to ensure it meets the requirements of the target system.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to the specific migration tool you are using. There may be known issues or additional configuration steps required.
  
  
  Testing: After making changes, perform a test migration with a smaller dataset to verify that the issue has been resolved before proceeding with the full migration.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on data migration issues.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit or the specific tool you are using for any additional troubleshooting steps or best practices.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.