How To Fix CNV_IUUC_REPL_ADV_SE190 - Duplicate records identified for table &1, &2 &3

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_IUUC_REPL_ADV_SE - MEssage class for package CNV_IUUC_REPL_ADV_SETTINGS

• Message number: 190

• Message text: Duplicate records identified for table &1, &2 &3

When rows are inserted into tables with a unique primary or secondary
key, duplicate records can occur with regard to one or more of these
keys. The system has identified such duplicates when inserting data into
table <(>&<)>1. The system does not insert the duplicate records into
the table.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_IUUC_REPL_ADV_SE190 - Duplicate records identified for table &1, &2 &3 ?

  The SAP error message CNV_IUUC_REPL_ADV_SE190 indicates that there are duplicate records identified in a specific table during a data replication or migration process. This error typically arises in the context of SAP Landscape Transformation (SLT) or data migration scenarios where data consistency is crucial.
  Cause:
  The error occurs when the system detects that there are multiple records in the source table that have the same key values, which violates the uniqueness constraint expected in the target table. This can happen due to:
  
  Data Quality Issues: The source data may contain duplicates due to data entry errors or lack of proper data governance.
  Incorrect Data Extraction: During the extraction process, if the logic is not correctly defined, it may lead to duplicates being pulled from the source.
  Configuration Issues: The replication or migration configuration may not be set up correctly, leading to the same records being processed multiple times.
  
  Solution:
  To resolve the CNV_IUUC_REPL_ADV_SE190 error, you can follow these steps:
  
  
  Identify Duplicate Records:
  
  Use SQL queries or SAP tools to identify the duplicate records in the source table. You can group by the key fields and count the occurrences to find duplicates.
  
  Example SQL query:
  SELECT key_field1, key_field2, COUNT(*)
  FROM source_table
  GROUP BY key_field1, key_field2
  HAVING COUNT(*) > 1;
  
  
  Clean Up Data:
  
  Once you have identified the duplicates, you need to decide how to handle them. Options include:
  
  Removing duplicates if they are erroneous.
  Merging records if they contain complementary information.
  Updating records to ensure uniqueness.
  
  
  
  
  
  Adjust Replication Configuration:
  
  Review the SLT or data migration configuration to ensure that it is set up correctly to avoid pulling duplicates. This may involve adjusting filters or extraction logic.
  
  
  
  Re-run the Replication/Migration:
  
  After cleaning up the data and adjusting configurations, re-run the replication or migration process to see if the error persists.
  
  
  
  Monitor for Future Issues:
  
  Implement data governance practices to prevent duplicates from occurring in the future. This may include validation rules, data entry controls, and regular data quality checks.
  
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like SLT for Landscape Transformation monitoring or SE11 for data dictionary to check table structures.
  SAP Notes: Check SAP Notes related to data replication and migration for any known issues or additional guidance.
  Documentation: Refer to SAP Help documentation for SLT or data migration for best practices and troubleshooting steps.
  
  By following these steps, you should be able to resolve the duplicate record issue and successfully complete your data replication or migration process.