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

SAP Error Message - Details

• 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.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20200_CHECK157 - Double mapping entry provided for source cash journal &1 in CoCd &2 ?

  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 are defined.
  Look for the entries related to the specific cash journal and company code mentioned in the error message.
  Identify any duplicate entries and remove or correct them.
  
  
  
  Review Source Data:
  
  If you are migrating data, check the source data for duplicates. Ensure that each cash journal is uniquely defined for the company code.
  Clean up the source data if necessary to eliminate duplicates before re-running the migration.
  
  
  
  Adjust Mapping Configuration:
  
  If the mapping was set up manually, review the configuration to ensure that each cash journal is mapped only once per company code.
  If using a migration tool, ensure that the mapping template is correctly filled out without duplicates.
  
  
  
  Test the Changes:
  
  After making the necessary adjustments, re-run the migration or mapping process to see if the error persists.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific migration or conversion process you are using for additional guidance.
  
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like SE11 (Data Dictionary) or SE80 (Object Navigator) to check the mapping tables.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  Support: If the issue persists after following the above steps, consider reaching out to SAP support for further assistance.
  
  By carefully reviewing the mapping entries and ensuring that there are no duplicates, you should be able to resolve the CNV_20200_CHECK157 error.