disclaimer on moving workspace

Author: Larry

articles/machine-learning/concept-workspace.md

@@ -79,6 +79,9 @@ You can also perform the following workspace management tasks:
 > Compute instances are available only for workspaces with a region of **North Central US**, **East US 2**, **North Europe** or **UK South**, with support for other regions coming soon.
 >If your workspace is in any other region, you can continue to create and use a [Notebook VM](concept-compute-instance.md#notebookvm) instead.
 
+> [!WARNING]
+> Moving your Azure Machine Learning workspace to a different subscription, or moving the owning subscription to a new tenant, is not supported. Doing so may cause errors such as `Unexpected status code: 500` when attempting to use the workspace.
+
 ## <a name='create-workspace'></a> Create a workspace
 
 When you create a workspace, you decide whether to create it with [Basic or Enterprise edition](overview-what-is-azure-ml.md#sku). The edition determines the features available in the workspace. Among other features, Enterprise edition gives you access to [Azure Machine Learning designer](concept-designer.md) and the studio version of building [automated machine learning experiments](tutorial-first-experiment-automated-ml.md).  For more details and pricing information, see [Azure Machine Learning pricing](https://azure.microsoft.com/pricing/details/machine-learning/).

articles/machine-learning/how-to-manage-workspace.md

@@ -56,6 +56,9 @@ To create a workspace, you need an Azure subscription. If you don’t have an Az
 
  1. To view the new workspace, select **Go to resource**.
 
+> [!WARNING]
+> Moving your Azure Machine Learning workspace to a different subscription, or moving the owning subscription to a new tenant, is not supported. Doing so may cause errors such as `Unexpected status code: 500` when attempting to use the workspace.
+
 ### Download a configuration file
 
 1. If you will be creating a [compute instance](tutorial-1st-experiment-sdk-setup.md#azure), skip this step.
@@ -102,7 +105,6 @@ Use the Delete button at the top of the workspace you wish to delete.
 
   ![Delete button](./media/how-to-manage-workspace/delete-workspace.png)
 
-
 ## Clean up resources
 
 [!INCLUDE [aml-delete-resource-group](../../includes/aml-delete-resource-group.md)]