Merged PR 21270: add Bing Maps deprecation note

add Bing Maps deprecation note

Author: jwmsft

windows.ui.xaml.controls.maps/mapcontrol.md

@@ -26,6 +26,13 @@ Represents a symbolic or photorealistic map of the Earth.
 
 ## -remarks
 
+> [!IMPORTANT]
+> **Bing Maps for Enterprise service retirement**
+>
+> The UWP [MapControl](mapcontrol.md) and map services from the [Windows.Services.Maps](../windows.services.maps/windows_services_maps.md) namespaces rely on Bing Maps. Bing Maps for Enterprise is deprecated and will be retired, at which point the MapControl and services will no longer receive data.
+>
+> For more information, see the [Bing Maps Developer Center](https://www.bingmapsportal.com/) and [Bing Maps documentation](/bingmaps/getting-started/).
+
 ### XAML attached properties
 
 MapControl is the host service class for several [XAML attached properties](/windows/uwp/xaml-platform/attached-properties-overview).

windows.ui.xaml.controls.maps/mapcontrol_mapservicetoken.md

@@ -17,6 +17,17 @@ The authentication key required for using the [MapControl](mapcontrol.md) and on
 
 ## -remarks
 
+> [!IMPORTANT]
+> **Bing Maps for Enterprise service retirement**
+>
+> The UWP [MapControl](mapcontrol.md) and map services from the [Windows.Services.Maps](../windows.services.maps/windows_services_maps.md) namespaces rely on Bing Maps. Bing Maps for Enterprise is deprecated and will be retired, at which point the MapControl and services will no longer receive data.
+>
+> For more information, see the [Bing Maps Developer Center](https://www.bingmapsportal.com/) and [Bing Maps documentation](/bingmaps/getting-started/).
+
+Your app must be authenticated before it can use the [MapControl](mapcontrol.md) and map services in the [Windows.Services.Maps](../windows.services.maps/windows_services_maps.md) namespace. To authenticate your app, you must specify a maps authentication key.
+
+See [Request a maps authentication key](/windows/uwp/maps-and-location/authentication-key).
+
 ## -examples
 
 ## -see-also

windows.ui.xaml.controls.maps/windows_ui_xaml_controls_maps.md

@@ -11,6 +11,13 @@ Defines classes for the Map control. Also defines tile sources and elements that
 
 ## -remarks
 
+> [!IMPORTANT]
+> **Bing Maps for Enterprise service retirement**
+>
+> The UWP [MapControl](mapcontrol.md) and map services from the [Windows.Services.Maps](../windows.services.maps/windows_services_maps.md) namespaces rely on Bing Maps. Bing Maps for Enterprise is deprecated and will be retired, at which point the MapControl and services will no longer receive data.
+>
+> For more information, see the [Bing Maps Developer Center](https://www.bingmapsportal.com/) and [Bing Maps documentation](/bingmaps/getting-started/).
+
 ## -examples
 
 ## -see-also