How To Fix CNV_20100233 - Temporary duplicate occurs for account &2; see long text

CNV_20100233 - Overview

• Message type: E = Error

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

• Message number: 233

• Message text: Temporary duplicate occurs for account &2; see long text

What causes this issue?

Account &V1& is to be renamed to account &V2&. Account &V2& exists in
the system, and will be renamed to &V3&. This will cause
<DS:TX.CNV_MBT_TEMP_DUPLICATES>temporary duplicates</>.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

How to fix this error?

Check your mapping table for correctness.
If the mapping is correct, be aware that the conversion runtime might be
longer.
Otherwise correct the mapping values.
If the runtime is critical, we recommend to avoid temporary duplicates
and change the mapping values.

Error message extract from SAP system. Copyright SAP SE.

CNV_20100233 - Details

• The SAP error message CNV_20100233, which indicates a "Temporary duplicate occurs for account &2," typically arises during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error suggests that there is a temporary duplicate entry for a specific account in the system, which can hinder the migration process.
  
  Cause:
  
  Duplicate Data: The most common cause is that there are duplicate entries in the source data that are being migrated. This can happen if the same account is listed multiple times in the data source.
  Data Mapping Issues: There may be issues with how accounts are mapped from the legacy system to the new system, leading to conflicts.
  Temporary State: The error may also occur if the system is in a temporary state where it cannot resolve the duplicates due to ongoing processes or transactions.
  
  
  Solution:
  
  Check Source Data: Review the source data for duplicates. Ensure that each account