How To Fix CNV_20200_CHECK347 - Double mapping entry provided for source house bank account (&1,&2,&3)

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 347

• Message text: Double mapping entry provided for source house bank account (&1,&2,&3)

What causes this issue?

Source house bank account &V1& in house bank &V2& of company code &V3&
is assigned to multiple target values.

System Response

Error

How to fix this error?

Provide a suitable mapping for house bank account IDs.

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_CHECK347 - Double mapping entry provided for source house bank account (&1,&2,&3) ?

  The SAP error message CNV_20200_CHECK347 indicates that there is a double mapping entry for a source house bank account in the context of a data migration or conversion process. This typically occurs during the use of the SAP S/4HANA Migration Cockpit or similar tools when mapping financial data, particularly house bank accounts.
  Cause:
  The error arises when the system detects that the same source house bank account is being mapped to multiple target house bank accounts. This can happen due to:
  
  Duplicate Entries: There are duplicate entries in the mapping table for the same source house bank account.
  Incorrect Mapping Logic: The mapping logic may not be correctly defined, leading to multiple mappings for the same source account.
  Data Quality Issues: The source data may contain inconsistencies or duplicates that were not addressed prior to the migration.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Mapping Entries:
  
  Review the mapping configuration for house bank accounts in the migration tool.
  Ensure that each source house bank account is mapped to only one target house bank account.
  
  
  
  Identify Duplicates:
  
  Look for duplicate entries in the mapping table. You can do this by exporting the mapping data to a spreadsheet and using functions to identify duplicates.
  
  
  
  Correct Mapping:
  
  If duplicates are found, decide which mapping is correct and remove or consolidate the duplicates.
  Ensure that the mapping logic aligns with your business requirements.
  
  
  
  Data Cleansing:
  
  If the source data has inconsistencies, perform data cleansing to ensure that there are no duplicate house bank accounts in the source data.
  
  
  
  Test the Changes:
  
  After making the necessary corrections, re-run the migration process to check if the error persists.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the migration process for any specific guidelines or best practices.
  
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like OBHB (House Bank) to manage house bank accounts in SAP.
  Migration Cockpit: Familiarize yourself with the SAP S/4HANA Migration Cockpit and its mapping functionalities.
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or solutions related to this error message.
  
  By following these steps, you should be able to resolve the CNV_20200_CHECK347 error and successfully complete your data migration process.