I have an existing Office 365 subscription which is connected to an Azure Active Directory (I believe they all are by default).
I have a requirement to host another Azure Active Directory but need to give access to the same Office 365 subscription, is this supported ?
I've done some research and found plenty of content on synchronising multiple forests using ADFS etc. but that requires VM or on-prem AD which I don't want.
It feels like it should be possible since when I register a custom app on Azure Active Directory it's just a token provider.
Here's the background to the requirement, I've have two Active Directory Forests (which are actually exposed to the outside world via two instances of Dell Identity Manager) one for internal staff and one for external partners.
There's an existing subscription which the business is using and they have been using 'temporary solution' of giving external partner access to the site by using Live ID accounts for external partners.
I've been asked to bring this into line with company policy which is to use the corporate identity management system.