Object cannot be modified in this system

What causes this issue?

This object is in the recipient system &V1& which receives transports
from the consolidation system &V2&. Direct changes cannot be made in
this system. The object can only be modified by correcting the original
in system &V3&.

System Response

The function was cancelled.

How to fix this error?

Modify the object in system &V3& and transport the changes.

Error message extract from SAP system. Copyright SAP SE.