We've got a lot of data (employee licenses / charge out rates / first aid certifications / etc) that we would like to synchronize between multiple systems. I was looking at the REST capabilities of MIM, but MIM seems to be emphasized as a on-premise solution, and Azure AD as the cloud solution.
My concern is that a lot of the data I'd like to replicate isn't appropriate to put into Azure AD, and Azure AD doesn't really need to know about it. With FIM, I can synchronize attributes only to the data sources that need them (so our HR System <-> Payroll system for example, without going to the AD data source).
Does Azure AD have a metaverse-style repository for this purpose? I'm not sure if I've articulated this very well...