Confirmed that it is currently by design that conditional access allows only one identity per device at this time. We hear that you need this and we’re looking into it. I’ve changed the title and category to indicate that this is related to conditional access.
Again, this is just for multiple identities from the same company. If you’re looking for having one device with identities from two different companies for MDM, that idea is here:
And if you’re looking for having multiple identities for MAM, that idea is here: https://microsoftintune.uservoice.com/forums/291681/suggestions/34627435
An error occurred while saving the commentStewart commented
Such a needed ability and odd that there is such a limitation - I run a business that does business with customers that already have a desire to enforce mobile device control - was relying on OWA to help out but that option is being taken away 15/05/18. At the moment it feels like I have to carry three iPhones around to do what I need (note need not want) to do.
Please Microsoft can you allow a single device to be managed by multiple O365 domains.