Clarify pool allocation modes

Author: alfpark

includes/batch-account-mode-include.md

@@ -2,13 +2,21 @@
  title: include file
  description: include file
  services: batch
- author: prkannap
  ms.service: batch
  ms.topic: include
- ms.date: 04/20/2022
- ms.author: prkannap
+ ms.date: 03/14/2023
  ms.custom: include file
 ---
 
 > [!NOTE]
-> When creating a Batch account, you can choose between two *pool allocation* modes: **user subscription** and **Batch service**. For most cases, you should use the default Batch service mode, in which pools are allocated behind the scenes in Azure-managed subscriptions. In the alternative user subscription mode, Batch VMs and other resources are created directly in your subscription when a pool is created. To create a Batch account in user subscription mode, you must also register your subscription with Azure Batch, and associate the account with an Azure Key Vault.
+> When creating a Batch account, you can choose between two *pool allocation* modes: **user subscription** and **Batch service**.
+> For most cases, you should use the default Batch service pool allocation mode, in which compute and VM-related resources for pools
+> are allocated on Batch service managed Azure subscriptions. In user subscription pool allocation mode, compute and VM-related
+> resources for pools are created directly in your Batch account subscription when a pool is created. In scenarios where you create a
+> [Batch pool in a virtual network that you specify](../articles/batch/batch-virtual-network.md), certain networking related resources
+> are created in the subscription of the virtual network.
+>
+> To create a Batch account in user subscription pool allocation mode, you must also register your subscription with Azure Batch,
+> and associate the account with an Azure Key Vault. See the
+> [additional configuration](../articles/batch/batch-account-create-portal.md#additional-configuration-for-user-subscription-mode)
+> required for user subscription pool allocation mode.