How To Fix CNV20201424 - Duplicates: &1,target CoCd=&2,target No.=&3

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV20201 -

• Message number: 424

• Message text: Duplicates: &1,target CoCd=&2,target No.=&3

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV20201424 - Duplicates: &1,target CoCd=&2,target No.=&3 ?

  The SAP error message CNV20201424 indicates that there are duplicate entries in the data being processed, specifically related to the target Company Code (CoCd) and target number. This error typically arises during data migration or conversion processes, particularly when using SAP's data migration tools.
  Cause:
  The error occurs when the system detects that there are multiple records with the same key values for the specified target Company Code and target number. This can happen due to:
  
  Data Duplication: The source data may contain duplicate entries that are being migrated to the target system.
  Incorrect Mapping: The mapping of fields during the migration process may not be set up correctly, leading to the creation of duplicate records.
  Data Quality Issues: Poor data quality in the source system can lead to duplicates being present.
  
  Solution:
  To resolve the CNV20201424 error, you can take the following steps:
  
  
  Identify Duplicates: 
  
  Review the source data to identify the duplicate entries. You can use SQL queries or data analysis tools to find records with the same target CoCd and target number.
  
  
  
  Clean Up Data:
  
  Remove or consolidate duplicate records in the source data before migration. Ensure that each record is unique based on the key fields.
  
  
  
  Adjust Mapping:
  
  Check the mapping configuration in the migration tool to ensure that it is set up correctly and does not inadvertently create duplicates.
  
  
  
  Use Data Validation Tools:
  
  Utilize SAP's data validation tools to check for duplicates before executing the migration process.
  
  
  
  Re-run Migration:
  
  After cleaning up the data and ensuring there are no duplicates, re-run the migration process.
  
  
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like SE16 or SE11 to view the underlying tables and data.
  SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or updates related to this error.
  Data Migration Tools: Familiarize yourself with the specific data migration tools being used (e.g., SAP S/4HANA Migration Cockpit, LSMW) as they may have specific features for handling duplicates.
  
  By following these steps, you should be able to resolve the CNV20201424 error and successfully complete your data migration process.