How To Fix CNV_MBT_ME004 - No duplicate keys found

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_MBT_ME - Messages for Mapping Engine and Merge Simulation

• Message number: 004

• Message text: No duplicate keys found

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_MBT_ME004 - No duplicate keys found ?

  The SAP error message CNV_MBT_ME004: No duplicate keys found 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 expected to find duplicate keys in the source data but did not find any. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Data Integrity Issues: The source data may not contain the expected duplicate keys. This could be due to data cleansing processes that removed duplicates or incorrect assumptions about the data structure.
  Mapping Errors: The mapping configuration may not be set up correctly, leading to the system not recognizing the keys as duplicates.
  Incorrect Source Data: The data being migrated may not have been prepared correctly, leading to a lack of duplicates where they were expected.
  Configuration Issues: There may be issues in the configuration of the migration project, such as incorrect settings in the migration cockpit.
  
  Solutions:
  
  Check Source Data: Review the source data to ensure that it contains the expected duplicate keys. You can use tools like Excel or SQL queries to analyze the data.
  Adjust Mapping: Verify the mapping configuration in the migration cockpit. Ensure that the fields that are supposed to be duplicates are correctly mapped.
  Data Preparation: If the source data is missing duplicates, consider re-evaluating the data preparation steps. You may need to adjust your data extraction or transformation processes to ensure duplicates are present.
  Consult Documentation: Refer to the SAP documentation for the specific migration tool you are using. There may be specific guidelines or prerequisites that need to be followed.
  Error Logs: Check the error logs for more detailed information about the error. This can provide insights into what the system was expecting versus what it found.
  Testing: Conduct a test migration with a smaller dataset to isolate the issue and verify that the changes you make resolve the error.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit, which may provide insights into common issues and their resolutions.
  Community Forums: Engage with the SAP Community or forums where other users may have encountered similar issues. They can provide practical advice and solutions based on their experiences.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.