How To Fix CNV20200318 - Company code &1/ house bank ID &2 exists more than once as a target value

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV20200 - Messages for development class CNV_20200

• Message number: 318

• Message text: Company code &1/ house bank ID &2 exists more than once as a target value

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV20200318 - Company code &1/ house bank ID &2 exists more than once as a target value ?

  The SAP error message CNV20200318 indicates that there is a duplicate entry for a specific combination of company code and house bank ID in the target values during a data migration or conversion process. This typically occurs in the context of using SAP's data migration tools, such as the SAP S/4HANA Migration Cockpit or other data transfer methods.
  Cause:
  The error arises when the system detects that the same company code and house bank ID combination is present more than once in the target data set. This can happen due to:
  
  Duplicate Data Entries: The source data may contain duplicate entries for the same company code and house bank ID.
  Incorrect Mapping: During the mapping process, the same target values may have been assigned to multiple source records.
  Configuration Issues: There may be issues in the configuration of the migration tool or the data model that lead to duplicates being created.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Identify Duplicates:
  
  Check the target data set for duplicate entries of the specified company code and house bank ID. You can use SQL queries or data analysis tools to identify duplicates.
  
  
  
  Review Source Data:
  
  Examine the source data to ensure that it does not contain duplicates for the same company code and house bank ID. If duplicates exist, you may need to clean the data before migration.
  
  
  
  Adjust Mapping:
  
  Review the mapping configuration in the migration tool. Ensure that each source record is mapped to a unique target value. If necessary, adjust the mapping to avoid conflicts.
  
  
  
  Consolidate Data:
  
  If duplicates are found in the source data, consider consolidating them into a single entry before migration. This may involve aggregating data or choosing which entry to keep.
  
  
  
  Test Migration:
  
  After making the necessary adjustments, perform a test migration to ensure that the error is resolved and that the data is correctly migrated without duplicates.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or support resources for specific guidance related to the migration tool you are using, as there may be additional steps or considerations based on the tool's functionality.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Migration Cockpit: Familiarize yourself with the SAP S/4HANA Migration Cockpit and its functionalities, as it provides tools for data mapping and validation.
  Data Quality Tools: Consider using data quality tools to analyze and clean your data before migration to prevent similar issues in the future.
  
  By following these steps, you should be able to resolve the CNV20200318 error and successfully complete your data migration process.