In an integrated environment with SDM and ITAM Assets are under control of ITAM and many shared fields can only be edited in ITAM as soon as a CI is also an asset. This makes sense for most of the attributes, but not for the service status. Also in an intergtated environenment this status should be also editable in SDM as this is the primary tool for Service Management. The other service management related attributes "service type" and "priority" are also shared but they are managable in SDM; the service staus is not and this makes no sense.
I suggest to make this field manageable in shared environments. Same of course for the Service Status Date, as these two belong together.