Hello my question relates to how I should structure my azure services.
I have a Azure SQL database on my primary tenant (U1) and a B2C tenant to support external users (U2). On U2 I create an app registration that has a user flow which lets users signup/signin. I have a Flask API which should allow signed in users to make api calls to get data from the DB. Should the API be registered as an app in U1 or U2. Additionally should it be configured to "single tenant" or "multi tenant"? And should the API be hosted on U1 or U2.
Thank you