The user permissions required to deploy UMC vary between the first and second instances of UMC.
The first instance of UMC:
You must have Supervisor rights or admin-equivalent tree-level rights to the tree root.
Successive instances of UMC:
You must have Write permission on the All Attributes Rights property of the umcConfig object under the security context.
Logged-in users must have Supervisor rights on the NCP server object where the pools and volumes are mounted for storage management.
The Compare, Read, and Write permissions on All Attributes Rights and Browse permission on Entry Rights are required at the tree level for the logged-in users to browse through the eDirectory tree.