A namespace in Azure Event Grid is a logical container for one or more topics, clients, client groups, topic spaces, and permission bindings. It provides a unique namespace, allowing you to have multiple resources in the same Azure region. Using an Azure Event Grid namespace, you can group together related resources and manage them as a single unit in your Azure subscription.

This article shows you how to use the Azure portal to create, view, and manage an Azure Event Grid namespace.

Create a namespace

1. Sign-in to theAzure portal.

2. In thesearch box, enterEvent Grid Namespaces and selectEvent Grid Namespaces from the results.

   

3. On theEvent Grid Namespaces page, select+ Create on the toolbar.

   

4. On theBasics page, follow these steps.

   1. Select theAzure subscription in which you want to create the namespace.

   2. Select an existingresource group or create a resource group.

   3. Enter aname for the namespace.

   4. Select the region orlocation where you want to create the namespace.

   5. If the selected region supports availability zones, theAvailability zones checkbox can be enabled or disabled. The checkbox is selected by default if the region supports availability zones. However, you can uncheck and disable availability zones if needed. The selection can't be changed once the namespace is created.

   6. Use the slider or text box to specify the number ofthroughput units for the namespace. Throughput units (TUs) define the ingress and egress event rate capacity in namespaces.

   7. SelectNext: Networking at the bottom of the page.

      

5. Follow steps fromConfigure IP firewall orConfigure private endpoints to configure IP firewall or private endpoints for the namespace, and then selectNext: Security at the bottom of the page.

6. On theSecurity page, create a managed identity by following instructions fromEnable managed identity for a namespace, and then selectNext: Tags at the bottom of the page.

7. On theTags tab, add the tags in case you need them. Then, selectNext: Review + create at the bottom of the page.

8. On theReview + create tab, review your settings, and selectCreate.

9. On theDeployment succeeded page, selectGo to resource to navigate to your namespace.

View a namespace

1. Sign-in to theAzure portal.

2. In thesearch box, enterEvent Grid Namespaces and selectEvent Grid Namespaces from the results.

   

3. On theEvent Grid Namespaces page, select your namespace.

   

4. You should see theEvent Grid Namespace page for your namespace.

   

Enable MQTT

If you want to enable the MQTT capabilities in the Azure Event Grid namespace, selectConfiguration and check the optionEnable MQTT.

Configure throughput units (TUs) for a namespace

If you already created a namespace and want to increase or decrease TUs, follow the next steps:

1. Navigate to the Azure portal and select the Azure Event Grid namespace you would like to configure the throughput units.

2. On theEvent Grid Namespace page, selectScale on the left navigation menu.

3. Enter the number ofthroughput units in the edit box or use the scroller to increase or decrease the number.

4. SelectApply to apply the changes.

   

   Note

   For quotas and limits for resources in a namespace including maximum TUs in a namespace, SeeAzure Event Grid quotas and limits.

Delete a namespace

1. Follow instructions from theView a namespace section to view all the namespaces, and select the namespace that you want to delete from the list.

2. On theOverview page, selectDelete on the toolbar.

   

3. On the confirmation page, type the name of the resource and selectDelete to confirm the deletion. It deletes the namespace and also all the nested topics, subscriptions, and MQTT resources.

   

Next steps

• See theCreate, view, and manage namespaces topics steps to learn more about the namespaces topics in Azure Event Grid.
• See theQuickstart: Publish and subscribe to MQTT messages on Event Grid Namespace with Azure portal section to learn how to use namespaces in IoT solutions supported by Azure Event Grid.