Nothing in what you’ve described would lead me to think you would need Broker, but, then again, you haven’t provided much detail.
Trading Networks uses processing rules and database “queues” to provide functionality that has many publish/subscribe characteristics without using Broker.
If you don’t use TN and don’t use Broker, but need to send a document (or message) to many subscribers, you’ll have to build your own infrastructure to manage publishers, subscribers, documents and subscriptions and to distribute published documents to the appropriate subscribers.
If your needs are extremely simple. This may be fine. If not, use Broker (or TN).
Mark
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