How To Fix CNV_20800217 - &1 duplicate entries has been deleted

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20800 - Message class for CNV_20800

• Message number: 217

• 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_20800217 - &1 duplicate entries has been deleted ?

  The SAP error message CNV_20800217 indicates that there are duplicate entries in a specific dataset that the system has identified and subsequently deleted. This error typically arises during data migration or data conversion processes, particularly when using SAP's data migration tools or during the execution of certain programs that handle large volumes of data.
  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:
  
  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: The error is often associated with SAP's data migration tools, such as the SAP S/4HANA Migration Cockpit or other conversion programs that check for data integrity and uniqueness.
  
  
  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 adheres to the required data quality standards.
  
  
  
  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 logs generated during the migration process for additional details on the duplicates that were found and deleted. 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: Conduct thorough testing in a non-production environment to ensure that the data migration process works smoothly after addressing the duplicate entries.
  
  By following these steps, you should be able to resolve the CNV_20800217 error and ensure a successful data migration or conversion process.