How To Fix CNV_20212_CHECK017 - Double mapping entry provided for source value &1

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20212_CHECK - Messages for check functions (credit control area conv.)

• Message number: 017

• Message text: Double mapping entry provided for source value &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20212_CHECK017 - Double mapping entry provided for source value &1 ?

  The SAP error message CNV_20212_CHECK017 indicates that there is a double mapping entry for a source value in a data conversion or migration process. This typically occurs during the use of the SAP Conversion or Migration tools, such as the SAP S/4HANA Migration Cockpit or other data migration tools.
  Cause:
  The error arises when the same source value is mapped to multiple target values in the mapping configuration. This can happen due to:
  
  Duplicate Entries: The mapping table or configuration may have duplicate entries for the same source value.
  Incorrect Mapping Logic: The logic used to define the mapping may inadvertently create multiple mappings for a single source value.
  Data Quality Issues: The source data may contain inconsistencies or duplicates that lead to multiple mappings.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Review Mapping Configuration:
  
  Check the mapping configuration for the specific source value indicated by &1 in the error message.
  Ensure that each source value is mapped to only one target value.
  
  
  
  Identify Duplicates:
  
  Look for duplicate entries in the mapping table or configuration. Remove or consolidate duplicates as necessary.
  
  
  
  Adjust Mapping Logic:
  
  If the mapping is generated programmatically, review the logic to ensure it does not create multiple mappings for the same source value.
  
  
  
  Data Cleansing:
  
  If the source data has duplicates or inconsistencies, consider cleansing the data before performing the mapping.
  
  
  
  Testing:
  
  After making changes, test the mapping again to ensure that the error is resolved.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation for the specific migration tool you are using for additional guidance on mapping configurations.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or fixes related to this error.
  Migration Cockpit: If you are using the SAP S/4HANA Migration Cockpit, review the specific migration object documentation for details on mapping requirements.
  Data Migration Best Practices: Familiarize yourself with best practices for data migration to avoid similar issues in the future.
  
  By following these steps, you should be able to identify and resolve the cause of the CNV_20212_CHECK017 error effectively.