Merge pull request #96486 from DevOpsStyle/azure-migrate-appliance-update

update appliance doc

Author: Court72

articles/migrate/migrate-appliance.md

@@ -35,6 +35,9 @@ The appliance can be deployed using a couple of methods:
 - For physical or virtualized servers on-premises or any other cloud, you always deploy the appliance using a PowerShell installer script.Refer to the steps of deployment [here](how-to-set-up-appliance-physical.md).
 - Download links are available in the tables below.
 
+> [!Note]
+> Don't install any other components, such as the **Microsoft Monitoring Agent (MMA)** or **Replication appliance**, on the same server hosting the Azure Migrate appliance. If you install the MMA agent, you can face problems like **"Multiple custom attributes of the same type found"**. It's recommended to have a dedicated server to deploy the appliance.
+
 ## Appliance services
 
 The appliance has the following services: