Add notes.

Author: dominicbetts

articles/iot-operations/discover-manage-assets/howto-use-media-connector.md

@@ -36,6 +36,9 @@ A camera connected to your network and accessible from your Azure IoT Operations
 
 [!INCLUDE [deploy-preview-media-connectors](../includes/deploy-preview-media-connectors.md)]
 
+> [!IMPORTANT]
+> If you don't enable preview features, you see the following error message in the `aio-supervisor-...` pod logs when you try to use the media or ONVIF connectors: `No connector configuration present for AssetEndpointProfile: <AssetEndpointProfileName>`.
+
 ## Deploy the media server
 
 If you're using the media connector to stream live video, you need to install your own media server. To deploy a sample media server to use with the media connector, run the following commands:

articles/iot-operations/discover-manage-assets/howto-use-onvif-connector.md

@@ -30,6 +30,9 @@ An ONVIF compliant camera connected to your Azure IoT Operations cluster.
 
 [!INCLUDE [deploy-preview-media-connectors](../includes/deploy-preview-media-connectors.md)]
 
+> [!IMPORTANT]
+> If you don't enable preview features, you see the following error message in the `aio-supervisor-...` pod logs when you try to use the media or ONVIF connectors: `No connector configuration present for AssetEndpointProfile: <AssetEndpointProfileName>`.
+
 ## Asset endpoint configuration
 
 To configure the ONVIF connector, first create an asset endpoint that defines the connection to the ONVIF compliant camera asset. The asset endpoint includes the URL of the ONVIF discovery endpoint and any credentials you need to access the camera.