How can I add QuickSight managed users authentication into an user account?

I have a QuickSight user account that apparently does not have the QuickSight-managed users authentication allowed as the “Invite Users” -button is missing from “Manage Quicksight” > “Manage Users”. Is there a way how can I set QuickSight-managed users authentication on or do I need to create a new QuickSight profile to get this functionality working?

How can I get the "invite users" -button visible at "Manage Users" -tab? - #4 by lillie. Linking and closing this question so that we can keep all of the threads on this in one place