How To Fix CNV_CMIS_A_20211 - Identical data found in table

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_CMIS_A_20 - Message class for Cross-Client Customizing Comparison (SLO)

• Message number: 211

• Message text: Identical data found in table

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_CMIS_A_20211 - Identical data found in table ?

  The SAP error message CNV_CMIS_A_20211 indicates that there is identical data found in a table during a data migration or conversion process. This error typically arises in the context of SAP's data migration tools, such as the SAP S/4HANA Migration Cockpit or other data conversion scenarios.
  Cause:
  The error occurs when the data being migrated or converted contains duplicate entries that violate the uniqueness constraints of the target table. This can happen due to:
  
  Duplicate Records: The source data may have duplicate records that are not allowed in the target system.
  Data Quality Issues: Poor data quality in the source system can lead to duplicates.
  Incorrect Mapping: The mapping of fields from the source to the target may not be set up correctly, leading to unintended duplicates.
  
  Solution:
  To resolve the CNV_CMIS_A_20211 error, you can follow these steps:
  
  
  Identify Duplicates:
  
  Analyze the source data to identify the duplicate records. You can use SQL queries or data analysis tools to find duplicates based on the key fields of the target table.
  
  
  
  Clean Up Data:
  
  Remove or consolidate duplicate records in the source data. This may involve:
  
  Deleting unnecessary duplicates.
  Merging records if they contain complementary information.
  
  
  
  
  
  Adjust Mapping:
  
  Review the mapping configuration in the migration tool to ensure that it correctly reflects the intended data structure and uniqueness constraints of the target table.
  
  
  
  Test Migration:
  
  After cleaning the data and adjusting the mapping, perform a test migration to ensure that the error does not occur again.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific migration tool you are using for any additional guidance or best practices.
  
  
  
  Related Information:
  
  Data Migration Tools: Familiarize yourself with the specific SAP data migration tools you are using, such as the SAP S/4HANA Migration Cockpit, and their functionalities.
  Data Quality Management: Implement data quality management practices to ensure that the source data is clean and free of duplicates before migration.
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or solutions related to this error message.
  
  By following these steps, you should be able to resolve the CNV_CMIS_A_20211 error and successfully complete your data migration or conversion process.