How To Fix CNV_20200_CHECK157 - Double mapping entry provided for source cash journal &1 in CoCd &2

CNV_20200_CHECK157 - Overview

• Message type: E = Error

• Message class: CNV_20200_CHECK - Messages for check functions (company code merge)

• Message number: 157

• Message text: Double mapping entry provided for source cash journal &1 in CoCd &2

What causes this issue?

Source cash journal &V1& in company code &V2& is assigned to multiple
target values.

System Response

Error

How to fix this error?

Correct the mapping.

Procedure for System Administrators

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.

CNV_20200_CHECK157 - Details

• The SAP error message CNV_20200_CHECK157 indicates that there is a double mapping entry for a source cash journal in a specific company code (CoCd). This typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools.
  
  Cause:
  The error arises when the system detects that the same source cash journal is mapped more than once for the same company code. This can happen due to:
  
  Duplicate Entries: There may be multiple entries in the mapping table for the same cash journal and company code.
  Incorrect Configuration: The mapping configuration might have been set up incorrectly, leading to overlapping or duplicate mappings.
  Data Migration Issues: During data migration, if the source data contains duplicates or if the mapping was not properly defined, this error can occur.
  
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Mapping Entries:
  
  Go to the mapping configuration in the SAP system where the cash journals