How do I configure MSAL-React/Browser to use Entra ID for app login and allow users to link their Microsoft account to my app?

[ashen92]

• I currently have MSAL set up to login user to my app using Entra ID email and password. Let's say I want to provide a way to user to link their Microsoft account and pull data from Microsoft Graph.
• I also want to allow user to link their Google account.
• Is it possible do this? Do I need multiple MSAL instances or is one enough?