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--- title: Enable managed identity for an Azure Event Grid partner topic description: This article describes how enable managed service identity for an Azure Event Grid partner topic. ms.topic: how-to ms.date: 07/21/2022 --- # Assign a managed identity to an Azure Event Grid partner topic This article shows you how to use the Azure portal to assign a system-assigned or a user-assigned [managed identity](/entra/identity/managed-identities-azure-resources/overview) to an Event Grid partner topic. When you use the Azure portal, you can assign one system assigned identity and up to two user assigned identities to an existing partner topic. ## Navigate to your partner topic 1. Go to the [Azure portal](https://portal.azure.com). 2. Search for **event grid partner topics** in the search bar at the top. 3. Select the **partner topic** for which you want to enable the managed identity. 4. Select **Identity** on the left menu. ## Assign a system-assigned identity 1. In the **System assigned** tab, turn **on** the switch to enable the identity. 1. Select **Save** on the toolbar to save the setting. :::image type="content" source="./media/enable-identity-partner-topic/identity-existing-topic.png" alt-text="Screenshot showing the Identity page for a partner topic."::: ## Assign a user-assigned identity 1. Create a user-assigned identity by following instructions in the [Manage user-assigned managed identities](/entra/identity/managed-identities-azure-resources/how-manage-user-assigned-managed-identities) article. 1. On the **Identity** page, switch to the **User assigned** tab in the right pane, and then select **+ Add** on the toolbar. :::image type="content" source="./media/enable-identity-partner-topic/user-assigned-identity-add-button.png" alt-text="Screenshot showing the User Assigned Identity tab"::: 1. In the **Add user managed identity** window, follow these steps: 1. Select the **Azure subscription** that has the user-assigned identity. 1. Select the **user-assigned identity**. 1. Select **Add**. 1. Refresh the list in the **User assigned** tab to see the added user-assigned identity. ## Next steps Add the identity to an appropriate role (for example, Service Bus Data Sender) on the destination (for example, a Service Bus queue). For detailed steps, see [Grant managed identity the access to Event Grid destination](add-identity-roles.md).