System setting does not allow changes to be made to object &2 &3

What causes this issue?

The system and namespace change option set for this SAP System does not
allow any changes to be made to object &V2& &V3&.

System Response

Editing is terminated, the object can only be displayed.

How to fix this error?

If you want to edit the object &V2& &V3& in this SAP System, have your
system administator set the SAP System to "modifiable" for this object.
This can affect the modifiability of the namespace &V1& or the
namespaces that correspond to the pattern &V1&, as well as the global
setting of the system change option.
The system change option is set using the Transport Organizer tools
(Transaction SE03). Expand the <LS>Administration</> node and execute
the program <LS>Set system change option</>. The options are described
there.

Error message extract from SAP system. Copyright SAP SE.