An administrator must have certain vCenter Server privileges to manage full clones and instant clones.
Horizon administrators need to create a custom role in vCenter Server and select privileges to manage full clones and instant clones. See the following topics for information on the minimum vCenter Server privileges needed to perform basic operations in vCenter Server.
Full Clone Privileges
See "Privileges Required for the vCenter Server User Without Instant Clones" in the Horizon 8 Installation and Upgrade guide for details.
Instant Clone Privileges
See "Privileges Required for the vCenter Server User With Instant Clones" in the Horizon 8 Installation and Upgrade guide for details.