Logical system name is used by another system. Please use a unique one.

What causes this issue?

There are currently two identical logical system names being used by
different systems, one for the original system and one for the copy. As
this is not supported, a unique logical system name must be created for
the copy.

System Response

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

How to fix this error?

For more information, see SAP Note 544509 - ALE: Conversion of names of
logical systems.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.