How To Fix CNV_20100643 - First found duplicative COES key: &1 &2 &3 &4

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20100 - Messageclass for chart of account conversion

• Message number: 643

• Message text: First found duplicative COES key: &1 &2 &3 &4

What causes this issue?

You selected the optional quick search for duplicate COES keys.

System Response

Only the first found duplicate COES key is stored in the log.

How to fix this error?

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_20100643 - First found duplicative COES key: &1 &2 &3 &4 ?

  The SAP error message CNV_20100643, which indicates "First found duplicative COES key: &1 &2 &3 &4," typically arises during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error is related to the COES (Controlling Object Entry) table, which is used in the Controlling (CO) module of SAP to store various controlling-related data.
  Cause:
  The error occurs when the migration process encounters duplicate keys in the COES table. The keys mentioned in the error message (&1, &2, &3, &4) represent specific fields that together form a unique identifier for entries in the COES table. When the migration tool finds more than one entry with the same key, it raises this error to prevent data integrity issues.
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Identify Duplicates: Use SQL queries or SAP transaction codes (like SE16 or SE11) to check the COES table for duplicate entries based on the keys indicated in the error message. You can run a query to count occurrences of each key combination.
  
  
  Data Cleansing: Once you identify the duplicates, you need to determine which entries are valid and which can be removed or consolidated. This may involve:
  
  Deleting unnecessary duplicates.
  Merging data if applicable.
  Correcting any data entry errors that led to duplication.
  
  
  
  Adjust Migration Data: If the duplicates are coming from the source system, you may need to adjust the data in the source system before migration. Ensure that the data being migrated does not contain duplicates.
  
  
  Re-run Migration: After resolving the duplicates, re-run the migration process to see if the error persists.
  
  
  Consult Documentation: Check SAP notes or documentation related to the specific migration process you are using. There may be additional guidelines or tools provided by SAP to handle such issues.
  
  
  Related Information:
  
  SAP Notes: Look for relevant SAP Notes that might provide additional insights or solutions for this specific error. You can search the SAP Support Portal for notes related to CNV_20100643.
  Migration Cockpit: Familiarize yourself with the SAP S/4HANA Migration Cockpit and its functionalities, as it may have built-in features to help identify and resolve data issues.
  Data Model: Understanding the data model of the CO module and the significance of the COES table can help in troubleshooting and ensuring data integrity during migration.
  
  If the issue persists after following these steps, consider reaching out to SAP support or consulting with an SAP expert who specializes in data migration.