How To Fix CNV_20100679 - Old cost element &1 exists more than once in the mapping for CoA &2

CNV_20100679 - Overview

• Message type: E = Error

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

• Message number: 679

• Message text: Old cost element &1 exists more than once in the mapping for CoA &2

Self-Explanatory Message

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CNV_20100679 - Details

• The SAP error message CNV_20100679 indicates that there is a duplicate entry for an old cost element in the mapping for a Chart of Accounts (CoA) during a migration or conversion process. This typically occurs in the context of data migration projects, especially when using the SAP S/4HANA Migration Cockpit or similar tools.
  
  Cause:
  The error arises when the system detects that the same old cost element (identified by &1) is mapped more than once in the mapping table for the specified Chart of Accounts (identified by &2). This can happen due to:
  
  Duplicate Entries: The mapping table may have been populated with duplicate entries for the same cost element.
  Incorrect Data Preparation: During the data preparation phase, the mapping file may have been incorrectly created or modified, leading to duplicates.
  Data Migration Tool Issues: There may be issues with the data migration tool or process that led to the duplication of entries.
  
  
  Solution:
  To resolve this