How To Fix CNV_20800218 - There is no duplicate entry

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20800 - Message class for CNV_20800

• Message number: 218

• Message text: There is no duplicate entry

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20800218 - There is no duplicate entry ?

  The SAP error message CNV_20800218: There is no duplicate entry typically occurs during data migration or conversion processes, particularly when using SAP's Data Migration tools or during the execution of specific conversion programs. This error indicates that the system is trying to find a duplicate entry in a dataset, but it cannot locate one, which may lead to issues in the data processing workflow.
  Causes:
  
  Missing Data: The entry that the system is trying to find may not exist in the source data or the target system.
  Incorrect Mapping: There may be an issue with how the data is mapped from the source to the target, leading to the system not being able to find the expected duplicates.
  Data Integrity Issues: The data being processed may have integrity issues, such as missing keys or incorrect relationships between records.
  Configuration Issues: The configuration settings for the data migration process may not be set up correctly, leading to the system looking for entries that do not exist.
  
  Solutions:
  
  Check Source Data: Verify that the source data contains the expected entries. Ensure that the data is complete and correctly formatted.
  Review Mapping Configuration: Check the mapping configuration to ensure that it correctly reflects the relationships and keys between the source and target datasets.
  Data Validation: Perform data validation checks to ensure that there are no integrity issues in the data. This may involve checking for missing keys or incorrect relationships.
  Adjust Migration Settings: If applicable, review and adjust the settings of the data migration tool or program to ensure it is configured correctly for your specific scenario.
  Consult Documentation: Refer to SAP documentation or notes related to the specific migration tool or program you are using for any known issues or additional troubleshooting steps.
  Logs and Traces: Check the logs and traces generated during the migration process for more detailed error messages or warnings that could provide additional context for the issue.
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes that may address this specific error or provide guidance on similar issues.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered the same error and what solutions they found effective.
  Data Migration Best Practices: Familiarize yourself with best practices for data migration in SAP to minimize the risk of encountering similar issues in the future.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.