How To Fix CNV_20100681 - Old account &2 &1 exists more than once in the 'Further accounts' mapping

CNV_20100681 - Overview

• Message type: E = Error

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

• Message number: 681

• Message text: Old account &2 &1 exists more than once in the 'Further accounts' mapping

Self-Explanatory Message

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CNV_20100681 - Details

• The SAP error message CNV_20100681 indicates that there is a duplicate entry for an old account in the 'Further accounts' mapping during a data migration or conversion process. This typically occurs in the context of the SAP S/4HANA migration or when using the SAP Conversion Tools.
  
  Cause:
  The error arises when the system detects that the same old account (identified by the account number and possibly the company code) is mapped more than once in the 'Further accounts' mapping table. This can happen due to:
  
  Duplicate Entries: The same old account has been entered multiple times in the mapping configuration.
  Incorrect Data Preparation: During the data preparation phase, the mapping file may have been incorrectly populated, leading to duplicates.
  Data Migration Tool Issues: If using a migration tool, there may be a bug or misconfiguration causing it to generate duplicate mappings.
  
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check the Mapping Table: Access the mapping