How To Fix CNV40107007 - Old and new Logical System are same &1 => &2

CNV40107007 - Overview

• Message type: E = Error

• Message class: CNV40107 - Package 40107 - Logical System

• Message number: 007

• Message text: Old and new Logical System are same &1 => &2

What causes this issue?

The logical system indicated as target value in the mapping table
already exists in the system. Consequently, it is not a mere rename,
but a merge.

System Response

The package was not designed for this.

How to fix this error?

Possibly, the package may be used nevertheless with a few
modifications. The tables in which a logical system is a key field have
to be given the "accepting duplicates" indicator in the CNV tables.
If data records with identical keys occur, all records except one are
deleted irrespective of whether their data areas are identical or not.
See the specification or contact SAP.

Error message extract from SAP system. Copyright SAP SE.

CNV40107007 - Details

• The SAP error message CNV40107007 indicates that there is an issue with the logical system configuration during a data migration or conversion process. Specifically, the error message states that the old and new logical systems are the same, which is not allowed in the context of the operation being performed.
  
  Cause:
  This error typically occurs in scenarios where a data migration or conversion process is trying to map data from an old logical system to a new logical system, but both logical systems are identical. This can happen due to:
  
  Incorrect Configuration: The logical system names may have been incorrectly configured in the migration settings.
  Misunderstanding of the Migration Process: The user may have intended to migrate data to a different logical system but mistakenly specified the same logical system for both the source and target.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Logical System Configuration:
  
  Go to the transaction code BD54 (Maintain