Dear Mariel,
ad 1.) SAP Landscape Transformation 2.0 requires to be installed on a Solution Manager, as it relies on several Solution Manager features, such as Workcenters, Roadmap and Documentation capabilities.
You may configure the SAP LT in a way that the pure execution of the data transfer is taking place on a seperate host in order to seperate workload and/or optimize performance, but the so called control system has to be a SAP Solution Manager instance.
ad 2.) I am not sure if this question relates to SAP LT or to SAP LT Replication Server (aka 'SLT'), which is a different product for permanent data replication. In both cases the DMIS add-on contains a server and a client software part. Ideally, you would distribute the same DMIS SP version in order to benefit from all available features of a given release. Especially with SLT there are some product features, such as archive delete filtering for example, which require identical SP levels.
However, there are certain ranges of compatibility, so that in general SAP can guarantee that basic data transfer capabilities always works even between different SP versions.
As a rule of thumb, at least a 2 SP level difference should always be compatible in regards to the data transfer capabilities. This is, what we always regression test.
Older versions may work, too, but we do not test this intensively. In case that there are features, which do not work, then, we need to recommend you to update the SP level accordingly.
Best regards,
Roland Hamm,
Product Management DM<, SAP SE
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