https://wiki.onap.org/display/DW/Tracking+of+designs+of+functionality+and+API
4, Multi-Tenant Support

So far MultiCloud exposed API with ID of a cloud region, assuming the consumer will issue the API request with the default tenant which are part of the AAI cloud region. With that the different tenants on the same VIM/Cloud instance can only be on-boarded into ONAP as different cloud regions.

To support the vision of enabling multiple tenants on the same cloud region, multicloud could help from following aspects:

a, discover all tenants from the VIM/Cloud instance and register them under one AAI cloud region, this is already done if the tenant user comes along with privilege to get list of tenants of the VIM/Cloud instance.

b, MultiCloud NBI should allow consumers to specify the tenant name/id during the requesting the API to MultiCloud. This can be done on various way, the easy and backward compatible approach is to having consumers putting the tenant ID/name into the "optional" request headers of the Rest API call.