How To Fix CNV_20900203 - &1 duplicate entries has been deleted

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20900 - Message class for package CNV_20900

• Message number: 203

• Message text: &1 duplicate entries has been deleted

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20900203 - &1 duplicate entries has been deleted ?

  The SAP error message CNV_20900203 indicates that there are duplicate entries in a dataset that the system has identified and subsequently deleted. This message is typically associated with data migration or data conversion processes, particularly when using SAP's data migration tools or during system upgrades.
  Cause:
  
  
  Duplicate Data: The primary cause of this error is the presence of duplicate entries in the source data that are being processed. This can occur due to various reasons, such as:
  
  Data extraction issues where the same records are pulled multiple times.
  Inconsistent data entry practices leading to duplicates in the source system.
  Errors in data transformation logic that do not adequately handle duplicates.
  
  
  
  Data Migration Tools: This error is often encountered when using SAP's data migration tools, such as the SAP S/4HANA Migration Cockpit or other conversion tools, which automatically check for and handle duplicates.
  
  
  Solution:
  
  
  Identify Duplicates: Before running the migration or conversion process, it is essential to identify and resolve any duplicate entries in the source data. This can be done by:
  
  Running queries or reports to find duplicates based on key fields.
  Using data profiling tools to analyze the dataset for duplicates.
  
  
  
  Data Cleansing: Once duplicates are identified, you should:
  
  Cleanse the data by removing or consolidating duplicate entries.
  Ensure that the remaining data is accurate and complete.
  
  
  
  Re-run the Migration: After cleansing the data, re-run the migration or conversion process to ensure that the error does not occur again.
  
  
  Review Logs: Check the migration logs for additional details on which entries were deleted and why. This can provide insights into the nature of the duplicates and help prevent similar issues in the future.
  
  
  Related Information:
  
  Data Migration Best Practices: Familiarize yourself with best practices for data migration, including data profiling, cleansing, and validation techniques.
  SAP Notes: Check for any relevant SAP Notes or documentation that may provide additional context or solutions related to this error message.
  Testing: Always perform thorough testing in a non-production environment before executing data migration in a live system to catch any potential issues early.
  
  By addressing the root cause of the duplicates and ensuring data integrity, you can prevent the CNV_20900203 error from occurring in future migrations or conversions.