Hi all
In the Power Apps I wanted to try out the Dataflow with the video guide https://www.youtube.com/watch?v=8d8xVOqlxbU
Unfortunately I always get the error message "Invalid credentials". I tried every kind of settings within this menu as well as different data source (Sharepoint, etc.). I have a E5 Developer license and full admin access. I couldn't find any solution for my problem.
Do I need another kind of license? Or are there any settings in the admin center?

thanks in advance for your advice's.