Multicustomer Tenant/Account [MSP Concept]
Partners are asking for a single cloud account (not on the partner portal), where they can manage multiple customers.
Which I guess would mean that the licenses should be taken and then assigned from a pool, that multiple active directory structures can be synchronized for each customer on the same account and not only users can be put in to groups, but also devices, in order to not confuse the customer machines.
The installers and provisioning mechanisms must be adapted as well, in order to aim the proper group (customer-group).
...Sounds like a challenge and a lot of work :-)