Transport routes inconsistent

What causes this issue?

You attempted to define system &V1& as a quality assurance system.
However, the transport routes are inconsistent with respect to client
control.

System Response

You cannot edit the quality assurance configuration.

How to fix this error?

Remove the error from the transport route configuration. For more
information, choose <LS>Configuration</> -> <LS>Check</> ->
<LS>Transport routes</>.

Error message extract from SAP system. Copyright SAP SE.