SAP Message 0T112 - Transport routes from &1 to &2 not allowed

Diagnosis
You attempted to create a transport route from system <(>&<)>V1<(>&<)>to target group <(>&<)>V2<(>&<)>. However, system <(>&<)>V1<(>&<)> hasa release that is too old for this transport route.
Target groups with client are allowed from Release 4.5A.
Target groups without client are allowed from Release 4.6A.

System Response
The function terminates.

Procedure
Create transport routes according to the above restrictions.