How To Fix CNV20551402 - There is a data record with the same key in CNV_20551_TSTRUC

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV20551 - message for package 20551 (company code delete)

• Message number: 402

• Message text: There is a data record with the same key in CNV_20551_TSTRUC

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV20551402 - There is a data record with the same key in CNV_20551_TSTRUC ?

  The SAP error message CNV20551402 indicates that there is a duplicate data record with the same key in the table CNV_20551_TSTRUC. This error typically arises during data migration or conversion processes, particularly when using SAP's data migration tools, such as the SAP S/4HANA Migration Cockpit or other conversion tools.
  Cause:
  The error is caused by the presence of multiple entries in the CNV_20551_TSTRUC table that share the same key. This can happen due to:
  
  Duplicate Data Entries: The source data being migrated may contain duplicate records that are being inserted into the target table.
  Incorrect Mapping: The mapping configuration may not be set up correctly, leading to the same key being generated for different records.
  Data Preparation Issues: Prior data preparation steps may not have adequately cleaned or deduplicated the data.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Identify Duplicates:
  
  Query the CNV_20551_TSTRUC table to identify the duplicate records. You can use SQL queries to find records with the same key.
  Example SQL query:
  SELECT key_column, COUNT(*)
  FROM CNV_20551_TSTRUC
  GROUP BY key_column
  HAVING COUNT(*) > 1;
  
  
  
  
  Remove or Merge Duplicates:
  
  Once you identify the duplicates, you can either remove them or merge them, depending on your business requirements.
  Ensure that you keep the necessary data and remove only the duplicates.
  
  
  
  Check Data Mapping:
  
  Review the data mapping configuration to ensure that it is set up correctly and that it does not generate duplicate keys.
  
  
  
  Data Cleansing:
  
  Before running the migration again, ensure that the source data is cleansed and does not contain duplicates.
  
  
  
  Re-run the Migration:
  
  After addressing the duplicates and ensuring the data is clean, re-run the migration process.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or patches related to this error.
  Documentation: Review the documentation for the specific migration tool you are using, as it may contain troubleshooting steps for common errors.
  Support: If the issue persists, consider reaching out to SAP support for assistance, providing them with details about the error and the steps you have taken to resolve it.
  
  By following these steps, you should be able to resolve the CNV20551402 error and successfully complete your data migration or conversion process.