How To Fix CNV20305656 - &1 lines were read and &2 mappings transferred from the file

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 656

• Message text: &1 lines were read and &2 mappings transferred from the file

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV20305656 - &1 lines were read and &2 mappings transferred from the file ?

  The SAP error message CNV20305656 typically relates to issues encountered during data migration or data transfer processes, particularly when using SAP's Data Migration tools or the SAP S/4HANA Migration Cockpit. This error message indicates that there was a discrepancy between the number of lines read from a file and the number of mappings that were successfully transferred.
  Cause:
  
  File Format Issues: The input file may not be formatted correctly, leading to issues in reading the data.
  Mapping Errors: There may be errors in the mapping configuration, causing some lines to be skipped or not processed correctly.
  Data Quality Issues: The data in the file may contain invalid entries or formats that do not match the expected schema.
  Technical Limitations: There may be limitations in the system regarding the number of records that can be processed at once.
  
  Solution:
  
  Check File Format: Ensure that the input file adheres to the expected format (e.g., CSV, TXT) and that delimiters are correctly set.
  Review Mapping Configuration: Verify the mapping settings in the migration tool to ensure that all necessary fields are correctly mapped.
  Data Validation: Perform a data quality check on the input file to identify and correct any invalid entries or formats.
  Log Analysis: Check the logs generated during the migration process for more detailed error messages that can provide insights into what went wrong.
  Test with Smaller Data Sets: If possible, test the migration with a smaller subset of data to isolate the issue.
  Consult Documentation: Refer to SAP documentation or notes related to the specific migration tool you are using for any known issues or additional troubleshooting steps.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit or the specific data migration tool you are using for best practices and troubleshooting tips.
  
  If the issue persists after following these steps, consider reaching out to SAP support for further assistance.