How To Fix CNV764 - Data had been saved already

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV - Conversion: Messages for Conversion Services (CNCC)

• Message number: 764

• Message text: Data had been saved already

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 CNV764 - Data had been saved already ?

  The SAP error message CNV764 ("Data had been saved already") 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 the system has detected that the data you are trying to save or process has already been saved in the database, which can lead to duplication or inconsistencies.
  Causes:
  
  Duplicate Data: The most common cause is that the data you are trying to import or process already exists in the target system.
  Incorrect Mapping: There may be issues with the mapping of fields or records, leading to attempts to save the same data multiple times.
  Process Re-execution: If a migration process is re-executed without proper cleanup or rollback, it may attempt to save data that was already processed.
  Transaction Management: Issues with transaction handling, where the system believes the data is still in a pending state.
  
  Solutions:
  
  Check for Duplicates: Before running the migration again, check the target system for existing records that match the data you are trying to import. You may need to adjust your source data to avoid duplicates.
  Data Cleanup: If the data has already been saved, you may need to delete or modify the existing records in the target system before re-running the migration.
  Review Migration Logs: Check the migration logs for details on what data was saved previously. This can help identify which records are causing the issue.
  Adjust Mapping: Ensure that the mapping of fields and records is correct to prevent the same data from being processed multiple times.
  Use Transaction Codes: If applicable, use transaction codes like SE16 or SE11 to view the tables and check for existing entries.
  Consult Documentation: Refer to the SAP documentation for the specific migration tool you are using for any additional troubleshooting steps or best practices.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the CNV764 error. SAP frequently updates their knowledge base with solutions for common errors.
  Migration Cockpit: If you are using the SAP S/4HANA Migration Cockpit, review the specific guidelines and best practices for data migration.
  Community Forums: Engage with the SAP Community or forums where other users may have encountered and resolved similar issues.
  
  If the problem persists after trying the above solutions, consider reaching out to SAP support for further assistance.