We are a company with subsidies in Switzerland (Zurich) and Berlin (Germany). We are using Microsoft365 with multiple Business Basic and Business Standard licenses.
I am the responsible person for the internal Microsoft365 use.
I am desperately looking for a best practice to implement a global address book which both subsidies can use and edit inside Outlook. Especially important for us is, that the solution can be used with:
iOS (iPhone and iPad)
This is actually the biggest problem as far as I see as every solution I have tried so far does at least not support one of the listed items.
I would appreciate any input that can help us achieve what we are looking for.