How To Fix CNV_ICWB103 - Could not create the delta replay task for table &1; duplicate exists.

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_ICWB - Incremental Conversion Workbench Messages

• Message number: 103

• Message text: Could not create the delta replay task for table &1; duplicate exists.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_ICWB103 - Could not create the delta replay task for table &1; duplicate exists. ?

  The SAP error message CNV_ICWB103 indicates that there is an issue with creating a delta replay task for a specific table due to the presence of duplicate entries. This error typically arises during data migration processes, particularly when using the SAP Information Lifecycle Management (ILM) or SAP Data Migration tools.
  Cause:
  The error occurs because the system has detected duplicate entries in the source data for the specified table (&1). Delta replay tasks are designed to capture changes in data, and if there are duplicates, the system cannot determine how to handle them, leading to this error.
  Solution:
  To resolve the CNV_ICWB103 error, you can follow these steps:
  
  
  Identify Duplicates:
  
  Query the source table to identify the duplicate entries. You can use SQL queries or SAP transaction codes to find duplicates based on the primary key or unique constraints.
  
  
  
  Remove or Consolidate Duplicates:
  
  Depending on your business requirements, you may need to either remove the duplicates or consolidate them into a single entry. This could involve:
  
  Deleting unnecessary duplicate records.
  Merging records if they contain complementary information.
  
  
  
  
  
  Check Data Consistency:
  
  Ensure that the remaining data is consistent and adheres to the expected format and constraints.
  
  
  
  Re-run the Delta Replay Task:
  
  After resolving the duplicates, attempt to create the delta replay task again. This should now proceed without errors.
  
  
  
  Review Migration Settings:
  
  If the issue persists, review the migration settings and configurations to ensure that they are correctly set up to handle the data being migrated.
  
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like SE11 (Data Dictionary) or SE16 (Data Browser) to analyze the table structure and data.
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or patches related to this error.
  Documentation: Review the SAP documentation for the specific data migration tool you are using, as it may contain guidelines on handling duplicates and other common issues.
  
  By following these steps, you should be able to resolve the CNV_ICWB103 error and successfully create the delta replay task for the specified table.