DNS Manager For WHMCS - Client Area Link

[Piotr]

Variable $dns_manager_is_active returns true if DNS Manager Add-On is active.
Variable $dns_manager_link returns a link when domain is available in DNS Manager (exists on the list in the 'Zones List' ).

If you can't access DNS Management from the client area then make sure that domain for which $dns_manager_link is empty, is located on the 'Zones List' .