Azure AD integration with Identity Server

[Ahmed Anwar]

I am having flutter mobile app and using identity server 4. Now I need to configure Azure Ad with identity server. In our scenario we have different customers having there own azure ad setup and we have a common login page. Now, How can I configure multiple azure ad with identity server for different organizations having the fact each organization has its own AAD setup. It would great if someone can share workflow details about how can we do this with flutter app