How To Fix CNV10310402 - Data record with same key exists in CNV_INTR_FLD_STR

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV10310 - Message class for development class CNV_10310

• Message number: 402

• Message text: Data record with same key exists in CNV_INTR_FLD_STR

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV10310402 - Data record with same key exists in CNV_INTR_FLD_STR ?

  The SAP error message CNV10310402 indicates that there is a data record with the same key that already exists in the table CNV_INTR_FLD_STR. This error typically occurs during data migration or conversion processes, particularly when using SAP's data migration tools like the SAP S/4HANA Migration Cockpit or other conversion tools.
  Cause:
  The error is caused by an attempt to insert a new record into the CNV_INTR_FLD_STR table that has a key (or combination of keys) that already exists in the table. This can happen due to:
  
  Duplicate Data: The source data being migrated contains duplicate entries that are being processed.
  Incorrect Mapping: The mapping configuration may not be set up correctly, leading to the same key being generated for multiple records.
  Previous Migration Attempts: If a migration process was interrupted or not completed successfully, it may have left behind records in the target table.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check for Duplicates: Review the source data to identify any duplicate records that may be causing the issue. You can use tools like Excel or SQL queries to find duplicates based on the key fields.
  
  
  Adjust Mapping: If the mapping configuration is incorrect, adjust it to ensure that it generates unique keys for each record being migrated.
  
  
  Clean Up Existing Data: If there are records in the CNV_INTR_FLD_STR table that are no longer needed, you may consider deleting them. However, be cautious with this approach to avoid losing important data.
  
  
  Log Analysis: Check the logs generated during the migration process for more detailed information about the error. This can provide insights into which specific records are causing the issue.
  
  
  Retry Migration: After addressing the duplicates or correcting the mapping, retry the migration process.
  
  
  Related Information:
  
  Table CNV_INTR_FLD_STR: This table is part of the SAP data conversion framework and is used to store intermediate field structures during the migration process.
  SAP Notes: Check SAP Notes related to data migration and the specific error message for any additional guidance or patches that may be available.
  Data Migration Tools: Familiarize yourself with the tools and methodologies used for data migration in SAP, such as the SAP S/4HANA Migration Cockpit, to better understand how to handle data records and mappings.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support or consulting with an SAP expert who specializes in data migration.