How To Fix CNV_20200_CHECK317 - Double mapping entry provided for source house bank ID &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: 317

• Message text: Double mapping entry provided for source house bank ID &1 in CoCd &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20200_CHECK317 - Double mapping entry provided for source house bank ID &1 in CoCd &2 ?

  The SAP error message CNV_20200_CHECK317 indicates that there is a double mapping entry for a source house bank ID 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 house bank ID has been mapped more than once for the same company code. This can happen due to:
  
  Duplicate Entries: There are multiple entries in the mapping table for the same house bank ID and company code.
  Incorrect Data Preparation: During the data preparation phase, the mapping data may have been incorrectly set up, leading to duplicates.
  Configuration Issues: There may be issues in the configuration of the migration project that allow for duplicate mappings.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Mapping Entries:
  
  Go to the mapping table or the relevant configuration area where the house bank mappings are defined.
  Look for entries that correspond to the source house bank ID and company code mentioned in the error message.
  
  
  
  Remove Duplicates:
  
  Identify and remove any duplicate entries for the same source house bank ID in the specified company code.
  Ensure that each house bank ID is mapped only once per company code.
  
  
  
  Validate Data:
  
  After making changes, validate the mapping data to ensure that there are no remaining duplicates.
  You can use transaction codes like SE16 or SE11 to view the relevant tables and check for duplicates.
  
  
  
  Re-run the Migration:
  
  Once the duplicates have been resolved, re-run the migration or conversion process to see if the error persists.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to the specific migration project you are working on for any additional guidance or best practices.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SE16 (Data Browser) or SE11 (Data Dictionary) to check the relevant tables.
  Migration Cockpit: If you are using the SAP S/4HANA Migration Cockpit, refer to the specific migration object documentation for details on mapping requirements.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  By following these steps, you should be able to resolve the CNV_20200_CHECK317 error and proceed with your data migration or conversion process.