I have a SaaS web app that need to implement the multitenant architecture to then login to the azure active directory, is something like that on a quickstart doc or something?
You can refer to documentation - How to: Sign in any Azure Active Directory user using the multi-tenant application pattern to create a multi-tenant app. Basically, you need to make the following changes achieve the same -
Update you application registration to be multi-tenant.
Modify your code to use the /common endpoint and to handle multiple issuer values
User/Admin consent to create a service principal in the user's tenant and make few code changes for the same.
The above documentation provide detailed steps to create a multi-tenant app.
You can also refer to the sample app here.
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