We would like to understand the differences between LWA and AWS root logins
We have a SaaS service that integrates with LWA (Login with Amazon) and our customers can use their AWS login to login to our service. Our customers have AWS accounts (not necessarily Amazon.com retail account).
The strange thing, LWA works for some customers and does not work for others. We were able to reproduce this behavior with two of our own AWS root accounts. there is no noticeable difference between the two. Both login if fine to AWS, while one works fine with the LWA the other login is not working
Any tips or explanation will be more than welcome