How To Fix CNV_20335_CHECK010 - Double mapping entry provided for source COAr &1 business process &2

CNV_20335_CHECK010 - Overview

• Message type: E = Error

• Message class: CNV_20335_CHECK - Message Class for 20335 Checks

• Message number: 010

• Message text: Double mapping entry provided for source COAr &1 business process &2

What causes this issue?

A source value is mapped to multiple target values. To run the
transformation solution, all source mapping values must have exactly one
target value.
You cannot run the transformation solution Controlling Area Merge
because certain prerequisites have not been met. Please change your
mapping accordingly.

System Response

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

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

CNV_20335_CHECK010 - Details

• The SAP error message CNV_20335_CHECK010 indicates that there is a double mapping entry for a source COA (Chart of Accounts) in the context of a specific business process. This typically occurs during data migration or conversion processes, particularly when using SAP's Conversion Tools or during the implementation of SAP S/4HANA.
  
  Cause:
  The error arises when the system detects that there are multiple mapping entries for the same source COA account in the mapping table. This can happen due to:
  
  Duplicate Entries: There are duplicate entries in the mapping table for the same source account and business process.
  Incorrect Mapping Configuration: The mapping configuration may have been set up incorrectly, leading to multiple mappings for the same source account.
  Data Migration Issues: During data migration, if the source data has inconsistencies or duplicates, it can lead to this error.
  
  
  Solution:
  To resolve the error, you can follow these steps:
  
  
  Check Mapping Table: Review the mapping table for the specific