Plesk administrator can not see Files tab and Database link of customer's subscriptions.
Owner of subscription doesn't have permissions Create and manage databases and Upload and manage files.
This issue has been considered as software issue #PPPM-2008 and will be fixed in future Plesk updates.
Check Customer permissions under:
Home > Subscriptions > <subscription_name> > Users
with role Owner to check whether the Owner has permissions Create and manage databases and Upload and manage files.
Assing to Owner missing permissions:
Use the following command:
# /usr/local/psa/bin/role --update Owner -owner <customer's_username> -databasesManagement true -filesManagement true
--helpfor more information:
# /usr/local/psa/bin/role --help