Merge pull request #196723 from batamig/patch-187

adding note for cyberx customers

Author: PRMerger12

articles/defender-for-iot/organizations/how-to-manage-subscriptions.md

@@ -7,13 +7,15 @@ ms.topic: how-to
 
 # Manage Defender for IoT subscriptions
 
-## About subscriptions
-
 Your Defender for IoT deployment is managed through your Microsoft Defender for IoT account subscriptions. You can onboard, edit, and offboard your subscriptions to Defender for IoT in the [Azure portal](https://portal.azure.com/#blade/Microsoft_Azure_IoT_Defender/IoTDefenderDashboard/Getting_Started).
 
 For each subscription, you will be asked to define a number of *committed devices*. Committed devices are the approximate number of devices that will be monitored in your enterprise. 
 
-### Subscription billing
+> [!NOTE]
+> If you've come to this page because you are a [former CyberX customer](https://blogs.microsoft.com/blog/2020/06/22/microsoft-acquires-cyberx-to-accelerate-and-secure-customers-iot-deployments) and have questions about your account, reach out to your account manager for guidance.
+
+
+## Subscription billing
 
 You are billed based on the number of committed devices associated with each subscription.
 
@@ -91,6 +93,7 @@ You may need to update your subscription with more committed devices, or more fe
 Changes in device commitment will take effect one hour after confirming the change. Billing for these changes will be reflected at the beginning of the month following confirmation of the change.
 
 You will need to upload a new activation file to your on-premises management console. The activation file reflects the new number of committed devices. See[Upload an activation file](how-to-manage-the-on-premises-management-console.md#upload-an-activation-file).
+
 ## Offboard a subscription
 
 You may need to offboard a subscription, for example if you need to work with a new payment entity. Subscription offboarding takes effect one hour after confirming the offboard. Your upcoming monthly bill will reflect this change.