Hi @peterh ,
Welcome to Solace Community, great to have you here!
Have a look at the Declarative SEMP documentation . In there you’ll see a note:
“…this feature is initially limited to service configuration, which is defined as the configuration elements required to add, remove, or change consumers and/or producers.”
In essence this means it’s only targetted at entities inside a Message-VPN for now - such as queues, client profiles, those kind of things. Creating clusters, links, channels etc are broker level entities so they aren’t supported yet.