So after those, we try to reach out our IT master AL
JS : AL, can you give us access to domain account? We need to take care of this issue. If you are too busy, just give us credential, we can also get help from AA
AL : This is ridiculous, Why always in last min thing! I don't knwo what account has log in..
JS: You mean this is ridiculous that you don't know which account? I agree!
AL : .....
And our Hero AL took care of it in 5 min.
I guess it make sense that Microsoft want you to owner of domain, so you can use your domain account log in, instead of using firstname.lastname@example.org
Great idea, but they just need to make it clear and easier to understand it.