| title | Create Service Bus Topics and Subscriptions in Azure |
|---|---|
| description | Quickstart: In this quickstart, you learn how to create a Service Bus topic and subscriptions to that topic by using the Azure portal. |
| author | spelluru |
| ms.author | spelluru |
| ms.date | 02/13/2026 |
| ms.topic | quickstart |
| ms.custom | mode-ui |
In this quickstart, you use the Azure portal to create a Service Bus topic and then create subscriptions to that topic.
Service Bus topics and subscriptions support a publish/subscribe communication model. With this pattern, components of a distributed application don't communicate directly with each other. Instead, they exchange messages through a topic, which acts as an intermediary.
:::image type="content" source="./media/service-bus-java-how-to-use-topics-subscriptions/service-bus-topics-subscriptions.png" alt-text="Diagram that shows how topics and subscriptions work." lightbox="./media/service-bus-java-how-to-use-topics-subscriptions/service-bus-topics-subscriptions.png":::
Service Bus queues deliver each message to a single consumer. In contrast, topics and subscriptions provide one-to-many communication using a publish/subscribe pattern. You can register multiple subscriptions to a single topic. When a message is sent to the topic, each subscription receives its own copy to process independently.
A subscription works like a virtual queue that receives copies of messages sent to the topic. You can also define filter rules on a subscription to control which messages it receives.
Service Bus topics and subscriptions enable you to scale to process a large number of messages across many users and applications.
[!INCLUDE service-bus-create-namespace-portal]
[!INCLUDE service-bus-create-topics-three-subscriptions-portal]
In this article, you created a Service Bus namespace, a topic in the namespace, and three subscriptions to the topic. To learn how to publish messages to the topic and subscribe for messages from a subscription, see one of the following quickstarts in the Publish and subscribe for messages section.