How To Fix CNV_00001227 - For table &1 duplicate handling method should be set to 'Ignoring dupl.'

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_00001 - Message class for CWB settings maintenance programs

• Message number: 227

• Message text: For table &1 duplicate handling method should be set to 'Ignoring dupl.'

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_00001227 - For table &1 duplicate handling method should be set to 'Ignoring dupl.' ?

  The SAP error message CNV_00001227 indicates that there is an issue with duplicate entries in a specific table during a data migration or conversion process. The message suggests that the duplicate handling method for the specified table (denoted as &1) should be set to "Ignoring duplicates."
  Cause:
  This error typically arises in the context of data migration projects, especially when using SAP's data migration tools (like SAP S/4HANA Migration Cockpit or SAP Data Services). The cause of the error can be attributed to:
  
  Duplicate Records: The source data contains duplicate records that violate the uniqueness constraints of the target table.
  Configuration Settings: The duplicate handling method for the specific table is not set to ignore duplicates, which is necessary when duplicates are present in the source data.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Source Data: Review the source data for the table in question to identify and understand the duplicates. You may need to clean or preprocess the data to remove or consolidate duplicates before migration.
  
  
  Set Duplicate Handling Method:
  
  If you are using a migration tool, navigate to the configuration settings for the specific migration project.
  Locate the settings for the table indicated in the error message.
  Change the duplicate handling method to "Ignoring duplicates" (or a similar option depending on the tool you are using).
  
  
  
  Re-run the Migration: After making the necessary adjustments, re-run the migration process to see if the error persists.
  
  
  Consult Documentation: If you are unsure about how to change the settings or if the issue continues, refer to the official SAP documentation or guides related to the specific migration tool you are using.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or updates regarding this error message.
  Data Quality: Ensure that your source data is of high quality and adheres to the expected formats and constraints of the target system.
  Testing: Always perform testing in a non-production environment before applying changes to production systems to avoid data integrity issues.
  
  By following these steps, you should be able to address the CNV_00001227 error and successfully proceed with your data migration or conversion process.