Dell PowerProtect DD Management Center (DDMC) 7.9 Installation and Administration Guide

You may need to Resolve Tenant Conflicts If you are managing Tenants from both DDMC and the DDOS CLI. Tenants have two identifiers: their name and a Universally Unique ID (UUID). From the DDOS CLI (starting in 5.7), you can easily create two Tenants with the same name but different UUIDs. DDMC detects this and offer to either merge the two Tenants (by giving them a newly created UUID) or rename one of the Tenants. When done, no Tenants will share a name without also sharing a UUID (and conversely).

If you change the name of a Tenant that is part of a PCM schedule, the name change is not updated automatically in the schedule. You must manually add the new Tenant name to the PCM schedule.