...
When working with the public cloud region as a provider vDC, you should also enter the administrator credentials in order to tag the org vDC for the provider vDC that it belongs to. This is because the Organization vDC credentials do not have access to the Provider vDC details. If the same organization has more than a single org vDC in the same provider vDC, then the system administrator should use ''vcd-system-region'' tool in order to tag a single vDC for use in the platform.
...