Update azure-maps-event-grid-integration.md

Author: stevemunk

articles/azure-maps/azure-maps-event-grid-integration.md

@@ -15,15 +15,16 @@ ms.custom: mvc
 
 Azure Maps integrates with Azure Event Grid, so that users can send event notifications to other services and trigger downstream processes. The purpose of this article is to help you configure your business applications to listen to Azure Maps events. This allows users to react to critical events in a reliable, scalable, and secure manner. For example, users can build an application to update a database, create a ticket, and deliver an email notification, every time a device enters a geofence.
 
-Azure Event Grid is a fully managed event routing service, which uses a publish-subscribe model. Event Grid has built-in support for Azure services like [Azure Functions](../azure-functions/functions-overview.md) and [Azure Logic Apps](../azure-functions/functions-overview.md). It can deliver event alerts to non-Azure services using webhooks. For a complete list of the event handlers that Event Grid supports, see [An introduction to Azure Event Grid](../event-grid/overview.md).
+> [!NOTE]
+> The Geofence API async event requires the region property of your Azure Maps account be set to ***Global***. When creating an Azure Maps account in the Azure portal, this isn't given as an option. For more information, see [Create an Azure Maps account with a global region](tutorial-geofence.md#create-an-azure-maps-account-with-a-global-region).
 
+Azure Event Grid is a fully managed event routing service, which uses a publish-subscribe model. Event Grid has built-in support for Azure services like [Azure Functions](../azure-functions/functions-overview.md) and [Azure Logic Apps](../azure-functions/functions-overview.md). It can deliver event alerts to non-Azure services using webhooks. For a complete list of the event handlers that Event Grid supports, see [An introduction to Azure Event Grid](../event-grid/overview.md).
 
 ![Azure Event Grid functional model](./media/azure-maps-event-grid-integration/azure-event-grid-functional-model.png)
 
-
 ## Azure Maps events types
 
-Event grid uses [event subscriptions](../event-grid/concepts.md#event-subscriptions) to route event messages to subscribers. An Azure Maps account emits the following event types: 
+Event grid uses [event subscriptions](../event-grid/concepts.md#event-subscriptions) to route event messages to subscribers. An Azure Maps account emits the following event types:
 
 | Event type | Description |
 | ---------- | ----------- |
@@ -78,4 +79,4 @@ Applications that handle Azure Maps geofence events should follow a few recommen
 To learn more about how to use geofencing to control operations at a construction site, see:
 
 > [!div class="nextstepaction"]	
-> [Set up a geofence by using Azure Maps](tutorial-geofence.md)
+> [Set up a geofence by using Azure Maps](tutorial-geofence.md)