How To Fix CNV_20200_CHECK089 - There are duplicate house bank IDs in the participating company codes

CNV_20200_CHECK089 - Overview

• Message type: E = Error

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

• Message number: 089

• Message text: There are duplicate house bank IDs in the participating company codes

What causes this issue?

There are duplicate house bank IDs in the participating company codes.

System Response

Warning, with action required

How to fix this error?

The business processes in bank accounting must be analyzed for these
conflicts, and you must specify mapping values.
Check whether the duplicate house bank ID in the participating company
codes refers to the same house bank and to the same accounts.
If this is not the case, that is, if the same house bank ID refers to
different objects, the house bank ID must be renamed during the company
code merge.

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_CHECK089 - Details

• The SAP error message CNV_20200_CHECK089 indicates that there are duplicate house bank IDs in the participating company codes during a data migration or conversion process. This error typically arises in the context of financial data migration, particularly when using the SAP S/4HANA Migration Cockpit or similar tools.
  
  Cause:
  The error occurs when the same house bank ID is assigned to multiple company codes within the system. In SAP, each house bank must be unique per company code to ensure proper financial transactions and reporting. Duplicate entries can lead to confusion in financial operations and reporting, which is why the system raises this error.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Identify Duplicate House Bank IDs:
  
  Use transaction codes like SE16 or SE11 to access the relevant database tables (e.g., T012 for house banks) and identify the duplicate entries.
  You can also run a query to find duplicates based on the house bank ID and