Is it possible to send a message to a specific subscription instead of a topic in Azure Service Bus? I would like to send a message only to one subscription of a topic (which means all subscriptions will receive the message). It is somehow possible in the Azure portal (see screenshot), and I was wondering if it's possible with the REST API (or C# skd).
Messages are never sent to a subscription. You always publish/send to a topic and subscriptions receive the messages that satisfy the criteria specified for each subscription via subscription rules. If you need a specific message type/payload to be received by only a single subscription, you need to specify the rules on that subscription to be the only subscription to evaluate the rules to true.
Alternatively, use a queue. A queue is good for a scenario when you know the receiver.
