How To Fix CNV_PE866 - Source mapping value &1 not found

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_PE - General messages for posting engine

• Message number: 866

• Message text: Source mapping value &1 not found

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_PE866 - Source mapping value &1 not found ?

  The SAP error message CNV_PE866: Source mapping value &1 not found typically occurs during data migration or conversion processes, particularly when using the SAP Landscape Transformation (SLT) or SAP Data Services tools. This error indicates that a specific source mapping value that is expected in the conversion process is not found in the mapping table or configuration.
  Cause:
  
  Missing Mapping Entry: The most common cause is that the source value (indicated by &1) does not exist in the mapping table. This could be due to an incomplete mapping setup or an oversight during the configuration.
  Incorrect Configuration: The mapping configuration may not have been set up correctly, leading to missing or incorrect entries.
  Data Issues: The source data being processed may contain unexpected values that do not match any of the defined mappings.
  Version Mismatch: If there are changes in the source or target systems, or if the mapping tables have not been updated accordingly, this error can occur.
  
  Solution:
  
  Check Mapping Table: Verify the mapping table to ensure that the source value (&1) exists. If it does not, you will need to add the appropriate mapping entry.
  Update Configuration: If the mapping is incorrect or incomplete, update the configuration to include the necessary mappings.
  Data Validation: Review the source data to ensure that it conforms to the expected values. If there are discrepancies, you may need to clean or transform the data before running the migration again.
  Consult Documentation: Refer to the SAP documentation for the specific migration tool you are using (e.g., SLT, Data Services) to ensure that you are following the correct procedures for mapping.
  Testing: After making changes, perform a test run to ensure that the error is resolved and that the data migration proceeds without issues.
  
  Related Information:
  
  Transaction Codes: Depending on the tool you are using, you may need to use specific transaction codes to access mapping tables or configuration settings (e.g., LTMC for Migration Cockpit).
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on mapping issues.
  Community Forums: Consider searching or posting in SAP community forums or support channels for additional insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.