Looking to have users that are logged in into Portal to have integration with Microsoft 365. When users are logged be able to seamlessly be able to go into specify SharePoint sites without having to login to Microsoft 365. All the documentation that I find is 10+ years old. Anyone have anything more recent I can reference on the process ?
Based on the query that you have raised can you refer to the below threads and the replies in it.
It deals with the similar issue as you have enquired -