Why My Plesk Subscribers can’t see the DNS Settings for their web site?
Usually subscriber can’t find DNS settings for their web sites in Plesk because of missing permissions , while configuring the subscriber or missing in the plan of Plesk :
To solve the problem you have two ways to do that:
Check if dns zone management is enabled.
For a certain subscription
Subscriptions > Your Subscription Domain > General Tab:Customize > Permissions Tab then DNS zone management
(if changed, subscription lock out of plan updates)
For entire service plan (recommended)
Service Plans > Desired Plan > Permissions Tab:DNS zone management
(subscription(s) in plan might be unlocked for syncing settings)