Specify another key for copying/renaming

What causes this issue?

You are trying to copy or rename the action manager definition '&V1&'.
When doing this, you have specified the same key for the target key.
However, copying or renaming requires a different target key.

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?

Specify a new key for the target, or cancel the function.

Error message extract from SAP system. Copyright SAP SE.