How To Fix CNV_20200_CHECK054 - Implicit merges due to mapping of company codes

CNV_20200_CHECK054 - Overview

• Message type: E = Error

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

• Message number: 054

• Message text: Implicit merges due to mapping of company codes

What causes this issue?

There are <DS:TX.CNV_MBT_IMPLICIT_MERGE>implicit merges</> due to the
mapping of the company codes.
If according to the mapping a company code is converted to a company
code that already exists, these two company codes are merged. If the
existing company code is not included in the mapping, this is an
<DS:TX.CNV_MBT_IMPLICIT_MERGE>implicit merge</>, that is, a merge that
is not defined directly (explicitly) in the mapping, but follows
implicitly from the mapping and the existing company code.
Example: Company code A is renamed into B (mapping: A -> B). However
company code B exists already and is not meant to be changed into
another company code. This would amount to an implicit merge of A and B.
For these implicit merges, the same checks as for explicit merges are
required (mapping: A -> B; B -> B).
We require that all company codes are included in the mapping, which are
part of an identified implicit merge.

System Response

Error

How to fix this error?

You must also add company codes as source values to the mapping if they
are target values, and already exist before the conversion.

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_CHECK054 - Details

• The SAP error message CNV_20200_CHECK054 typically occurs during data migration processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates that there are implicit merges happening due to the mapping of company codes, which can lead to data inconsistencies or conflicts.
  
  Cause:
  The error is generally caused by the following scenarios:
  
  
  Company Code Mapping Conflicts: When multiple source company codes are mapped to a single target company code, it can lead to implicit merges. This means that data from different source company codes will be combined into one, which may not be the intended outcome.
  
  
  Data Overlap: If the same data (e.g., customer or vendor records) exists in multiple source company codes and is being mapped to a single target company code, it can create conflicts.
  
  
  Inconsistent Data Structures: Differences in the data structure or configuration between the source and target systems can also lead to this error.
  
  
  
  Solution:
  To