How To Fix CNV_20600_CHECK054 - Implicit merges due to mapping of company codes for number assignment

CNV_20600_CHECK054 - Overview

• Message type: E = Error

• Message class: CNV_20600_CHECK - Messages for Check classes

• Message number: 054

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

What causes this issue?

There are <DS:TX.CNV_MBT_IMPLICIT_MERGE>implicit merges</> due to the
mapping of the company codes for number assignment.
If according to the mapping a company code for number assignment is
converted to a company code for number assignment that already exists,
these two company codes for number assignment 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 for number
assignment.
Example: Company code for number assignment A is renamed into B
(mapping: A -> B). However company code for number assignment B exists
already and is not meant to be changed into another company code for
number assignment. This would amount to an implicit merge of A and B.
For these <DS:TX.CNV_MBT_IMPLICIT_MERGE>implicit merges</>, the same
checks as for explicit merges are required (mapping: A -> B; B -> B).
We require that all company codes for number assignment 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 for number assignment as source values
to the mapping, if they are target values and already exist before the
conversion.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

CNV_20600_CHECK054 - Details

• The SAP error message CNV_20600_CHECK054 typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that there are implicit merges happening due to the mapping of company codes for number assignment, which can lead to conflicts or inconsistencies in the data.
  
  Cause:
  The error is generally caused by the following factors:
  
  
  Company Code Mapping: During the data migration process, if multiple company codes are mapped to the same number range or if there are overlaps in the number ranges assigned to different company codes, it can lead to implicit merges. This means that the system is trying to assign the same number to different entities, which is not allowed.
  
  
  Number Range Configuration: The configuration of number ranges for company codes may not be set up correctly, leading to conflicts when the system tries to assign numbers during the migration.
  
  
  Data Consistency Issues: If