How To Fix CNV_20900204 - There is no Duplicate

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20900 - Message class for package CNV_20900

• Message number: 204

• Message text: There is no Duplicate

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 CNV_20900204 - There is no Duplicate ?

  The SAP error message CNV_20900204: There is no Duplicate typically occurs during data migration or conversion processes, particularly when using SAP's data migration tools like the SAP S/4HANA Migration Cockpit or other conversion tools. This error indicates that the system is expecting to find a duplicate entry in the data being processed, but it cannot find one.
  Cause:
  
  Data Integrity Issues: The data being migrated may not have the expected duplicates. This could be due to incorrect data preparation or transformation before the migration.
  Configuration Issues: The migration settings or mapping may not be correctly configured to handle duplicates.
  Business Logic: The business rules defined in the migration process may require duplicates that are not present in the source data.
  
  Solution:
  
  Check Source Data: Review the source data to ensure that it contains the expected duplicates. You may need to adjust the data extraction or transformation process to ensure that duplicates are created where necessary.
  Adjust Migration Settings: If the migration tool allows, check the configuration settings to ensure that it is set up to handle duplicates correctly. This may involve adjusting mapping rules or transformation logic.
  Consult Documentation: Refer to the SAP documentation for the specific migration tool you are using. There may be specific guidelines or requirements regarding duplicates that need to be followed.
  Data Cleansing: If the absence of duplicates is an issue, consider performing data cleansing or enrichment to create the necessary duplicates before migration.
  Error Logs: Check the error logs for more detailed information about the context in which the error occurred. This can provide insights into what specific data or configuration is causing the issue.
  
  Related Information:
  
  SAP Notes: Look for 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 the same issue and what solutions they found effective.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit or the specific tool you are using for any additional guidance on handling duplicates.
  
  If the issue persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.