Addressed PM review inputs

Author: AbhishekMallick01

articles/backup/backup-azure-vm-migrate-enhanced-policy.md

@@ -25,7 +25,7 @@ Azure Backup now supports migration to the enhanced policy for Azure VM backups
 - Before you start the migration, ensure that there are no ongoing backup jobs for the VM that you plan to migrate.
 - Migration is supported for Managed VMs only and isn’t supported for Classic or unmanaged VMs.
 - Once the migration is complete, you can’t change the backup policy back to standard policy.
-- Migration operations trigger a backup job as part of the migration process and might take up to several hours to complete for large VMs.
+- When you migrate a VM Backup Item from Standard to Enhanced policy, the process triggers a backup job that might take several hours for large VMs. This precautionary backup uses managed disk snapshots — starting with a full disk copy for instant restore, which increases backup time. Later snapshots are incremental, storing only changes since the last snapshot. If you're using unmanaged disks, make sure the storage account hosting the snapshot or VHD files allows public network access or similar settings; otherwise, the system falls back to a standard recovery point restore, which slows down recovery.
 - The change from standard policy to enhanced policy can result in extra costs. [Learn More](backup-instant-restore-capability.md#cost-impact).
 
 >[!Note]
@@ -140,4 +140,4 @@ To trigger bulk migration of VMs protected using Standard policy to an Enhanced
 
 - Learn about [Standard VM backup policy](backup-during-vm-creation.md#create-a-vm-with-backup-configuration).
 - Learn how to [back up an Azure VM using Enhanced policy](backup-azure-vms-enhanced-policy.md).
-- [Troubleshoot backup policy migration issue](backup-azure-vms-troubleshoot.md#migration-from-standard-to-enhanced-policy-issue).
+- [Troubleshoot backup policy migration issue](backup-azure-vms-troubleshoot.md#migration-from-standard-to-enhanced-policy-issue).