How To Fix CNV_20340_CHECK012 - Source value op. concern &1 cycle &2 assigned to multiple target values

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20340_CHECK - Message Class for 20340 Checks

• Message number: 012

• Message text: Source value op. concern &1 cycle &2 assigned to multiple target values

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20340_CHECK012 - Source value op. concern &1 cycle &2 assigned to multiple target values ?

  The SAP error message CNV_20340_CHECK012 indicates that there is a data inconsistency in the conversion process, specifically related to the assignment of source values to multiple target values. This error typically arises during data migration or conversion processes, particularly when using SAP's Conversion Tools (like the SAP S/4HANA Migration Cockpit or other data migration tools).
  Cause:
  The error message suggests that a source value (in this case, an operational concern identified by &1) for a specific cycle (&2) is assigned to multiple target values. This can happen due to:
  
  Data Duplication: The source data may have duplicate entries that map to different target values.
  Incorrect Mapping: The mapping configuration between source and target values may not be set up correctly, leading to multiple target assignments for a single source value.
  Business Logic Issues: The business rules defined for the conversion may not be correctly implemented, causing conflicts in how values are assigned.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Review the Mapping Configuration:
  
  Check the mapping rules defined for the operational concern and cycle in question. Ensure that each source value is mapped to a unique target value.
  
  
  
  Identify Duplicates:
  
  Analyze the source data to identify any duplicate entries that may be causing the conflict. You can use SQL queries or data analysis tools to find duplicates.
  
  
  
  Adjust the Data:
  
  If duplicates are found, decide on a strategy to handle them. This could involve consolidating the data, choosing a single target value, or modifying the source data to ensure uniqueness.
  
  
  
  Update the Mapping:
  
  If the mapping is incorrect, update it to ensure that each source value corresponds to only one target value.
  
  
  
  Test the Changes:
  
  After making adjustments, run the conversion process again to see if the error persists. 
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific conversion tool you are using for any additional guidance or known issues.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context.
  Data Migration Best Practices: Familiarize yourself with best practices for data migration in SAP, which can help prevent similar issues in the future.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered and resolved similar issues.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.