I don't know the URL of "vCloud Director tenant portal" of "Managed v Platform Powered by VMware".
The URL of the Portal is composed as follows.
# The variables like $1,$2,$3 above-mentioned means the following.
$1 : region for the tenant
$2 : tenant ID
$3 : tenant name (If the tenant name includes half-width character or the characters other than -_.(),$, the character is to be omitted.)
region for the tenant : JP4
tenant ID : 0123456789abcdef0123456789abcdef
tenant name : Tenant_[Name] URL : https://mvp-vcd-1-gui-jp4.ecl.ntt.com/tenant/0123456789abcdef0123456789abcdef-Tenant_Name