I need to provide SSO for my web app using AAD of other tenant
I am running my app in my Azure tenant (A) and I have used App registration in my other Azure tenant (B) to gain access to its AAD.
Within my app I can access the users list of Azure tenant (B). I would like to build further on this by adding SSO.
Unfortunately, I cannot find a document that explain how to accomplish this within Azure.
So the main idea is to run my app in my Azure tenant (A) and when a user makes use of my app the user is logged in by means of SSO with the use of there own AAD user list.
Any pointers, ideas, help on this subject is much appreciated.