Steps to allow the backup proxy to have access privilege to a specific resource pool

Log in to vCenter as an Administrator.

Navigate to Menu > Administration > Single Sign-On > Users and Groups.

Select the correct domain and click Add User.

Create a new user with the required credentials.
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Log in to vCenter and navigate to vCenter > Permissions.

Click the “+” icon to add permissions.

Select the newly created user and assign the Administrator role.

Uncheck the Propagate to children checkbox.
​(Repeat these steps for the relevant resource pool hierarchy: Datacenter, Cluster, Host, etc.)

For the Resource Pool, check the Propagate to children checkbox. This ensures the admin can access all virtual machines within the resource pool.
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Apply permissions to the folder hierarchy where virtual machines are organized.

Assign the Administrator role to the new user, and uncheck the Propagate to children checkbox.
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Navigate to the Datastore View in vCenter.

Add permissions for all datastores where the VM disk files (VMDKs) are located.

Assign the Administrator role and uncheck the Propagate to children checkbox.

Go to the Network View in vCenter.

Add permissions for all networks and hierarchies that are utilized by the VMs.

Assign the Administrator role and uncheck the Propagate to children checkbox.

Log in to vCenter using the newly created admin user.

Ensure that all resources (hosts, clusters, datastores, networks, etc.) are visible.

While deploying the OVF, provide the following details:

Power on the backup proxy.

Use the ProxyConf command to configure the vCenter admin details.

Use the PhoenixActivate command with the token to register the proxy with Phoenix.